OPT I-765 Processing Time.ipynb

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    "%matplotlib inline\n",
    "import matplotlib.pyplot as plt\n",
    "plt.style.use('ggplot')\n",
    "%config InlineBackend.figure_format = 'svg'"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Overview\n",
    "\n",
    "Students under the F-1 visa usually apply for Optional Practical Training (OPT) to get work authorization from US Citizenship and Immigration Services (USCIS) for internships / jobs. It is also the ultimate test of one's patience. Even after one has braved the inane paperworks and countless trips to advisors / international student offices, one would still have to wait up to 90 days for the authorization approval. **What makes this wait worse is the lack of updates during the wait.** When one applies for OPT (and the application is received by USCIS), one gets a receipt number. Using this receipt number to check one's progress (at [https://egov.uscis.gov/casestatus/mycasestatus.do](https://egov.uscis.gov/casestatus/mycasestatus.do)) is highly unsatisfying. Until the work authorization is approved (or God forbid rejected / put on hold for additional evidence), one is faced with rather useless description that reads something like this:\n",
    "\n",
    "> 'On February 22, 2016, we received your Form I-765, Application for Employment Authorization , Receipt Number EAC1690120079, and sent you the receipt notice that describes how we will process your case. Please follow the instructions in the notice. If you do not receive your receipt notice by March 23, 2016, please call Customer Service at 1-800-375-5283. If you move, go to www.uscis.gov/addresschange to give us your new mailing address.'\n",
    "\n",
    "USCIS does a really bad job of keeping one updated on the progress of a case and in general how far along they are going with the entire year's batch of students.\n",
    "\n",
    "**Fortunately, we can do better.**\n",
    "\n",
    "# Receipt Numbers\n",
    "\n",
    "USCIS issues receipt numbers in chronological order. That means if I submitted my application on March 1, 2016 and I got the number YSC1690079958, the next person to submit his application gets the number YSC169007995**9**. The person before me gets the number YSC169007995**7**. Using this fact, I can see how people before and after me are doing. USCIS also states that the cases are processed in a first-come-first-serve order.\n",
    "\n",
    "- If a huge proportion of people before (and possibly after) me have their OPTs approved, I should have mine processed soon.\n",
    "- However, if the people who submitted around my date are stil waiting for their approval, I can expect to wait a long time.\n",
    "\n",
    "However, doing so manually at [https://egov.uscis.gov/casestatus/mycasestatus.do](https://egov.uscis.gov/casestatus/mycasestatus.do) is a slow and tiring process. Instead, I can write a script to \"scrape\" the website for the 50,000 or so cases before and after my own number.\n",
    "\n",
    "> Additional note: This year, there are two USCIS centers processing OPT applications -- the Vermont office and the Potomac office. The Potomac office opened later in the cycle (around March) to help with the application volume. [https://www.uscis.gov/news/potomac-service-center-now-processing-certain-form-i-765-cases](https://www.uscis.gov/news/potomac-service-center-now-processing-certain-form-i-765-cases). Applications that are sent to the Vermont office first have the prefix `EAC`. Those may be then routed to the Potomac office. Applications that are sent in late March and later are sent directly to the Potomac office, giving them the prefix `YSC`. This means that when I scrape the pages for data, I have to account for both prefixes.\n",
    "\n",
    "I planned to scrape receipt numbers `EAC1690120000` to `EAC1690180000` and `YSC1690040000` to `YSC1690080000`. This should give me a good sense of applications submitted in the February to April period.\n",
    "\n",
    "# Scraping\n",
    "\n",
    "## IP Blocking\n",
    "\n",
    "I first wrote a simple `Node.JS` script to do this. I didn't use `python` because `async` in `python` is a pain in the ass.\n",
    "\n",
    "```js\n",
    "var cheerio = require('cheerio');\n",
    "var request = require('request');\n",
    "var async = require('async');\n",
    "var fs = require('fs');\n",
    "var stringify = require('csv-stringify');\n",
    "\n",
    "var URL = 'https://egov.uscis.gov/casestatus/mycasestatus.do?appReceiptNum=RECEIPT_NUM';\n",
    "var PREFIX = 'EAC';\n",
    "var START_NUMBER = 1690120000;\n",
    "var END_NUMBER = 1690180000;\n",
    "\n",
    "var receiptNumbers = [];\n",
    "for (var i = START_NUMBER; i < END_NUMBER; i++) {\n",
    "  receiptNumbers.push(PREFIX + i);\n",
    "}\n",
    "fs.writeFileSync('raw_data.csv', 'receipt,title,text\\n');\n",
    "\n",
    "function retrieveReceiptNumber(receiptNumber, callback) {\n",
    "  request({\n",
    "      url: URL.replace('RECEIPT_NUM', receiptNumber),\n",
    "      rejectUnauthorized: false\n",
    "    },\n",
    "    function (err, resp, body) {\n",
    "      if (err) {\n",
    "        console.error(err);\n",
    "      }\n",
    "      var $ = cheerio.load(body);\n",
    "      var title = $('.appointment-sec').find('.text-center').find('h1').text();\n",
    "      var description = $('.appointment-sec').find('.text-center').find('p').text();\n",
    "\n",
    "      var violation = $('label[for=accessviolation]').text();\n",
    "\n",
    "      if (title.length == 0) {\n",
    "        if (violation.length > 0) {\n",
    "          console.log('access violation');\n",
    "        }\n",
    "        callback();\n",
    "      } else {\n",
    "        var row = [\n",
    "          [receiptNumber, title, description]\n",
    "        ];\n",
    "\n",
    "        stringify(row, function (err, output) {\n",
    "          if (err) {\n",
    "            console.error(err);\n",
    "          }\n",
    "          fs.appendFile('raw_data.csv', output, function (err) {\n",
    "            if (err) {\n",
    "              console.error(err);\n",
    "            }\n",
    "            console.log(receiptNumber + ' written');\n",
    "            callback();\n",
    "          });\n",
    "        });\n",
    "      }\n",
    "    });\n",
    "}\n",
    "\n",
    "async.eachLimit(receiptNumbers, 100, retrieveReceiptNumber, function (err) {\n",
    "  if (err) {\n",
    "    console.error(err);\n",
    "  }\n",
    "  console.log('DONE');\n",
    "});\n",
    "```\n",
    "\n",
    "## Scrapoxy\n",
    "\n",
    "USCIS (unsurprisingly) blocked my IP after around 2,000 queries. So I needed a way to get around the IP blocking. Fortunately, an easy solution was available: [http://scrapoxy.io/](http://scrapoxy.io/). Scrapoxy manages a pool of EC2 / DigitalOcean instances for you (afte some setting up) and provides a single local port for you as a proxy. This allows you to route your requests through the multiple cloud instances. This lowers the likelihood of a single IP getting blocked. (Even if one gets blocked, you can simply kill the instance and restart it. I didn't have to do this, sine none of the cloud instances got blocked). After setting up Scrapoxy and running the proxy at `http://localhost:8888`, I can pass this easily to the `request` module in my script:\n",
    "\n",
    "```js\n",
    "var cheerio = require('cheerio');\n",
    "var request = require('request');\n",
    "var async = require('async');\n",
    "var fs = require('fs');\n",
    "var stringify = require('csv-stringify');\n",
    "\n",
    "var URL = 'https://egov.uscis.gov/casestatus/mycasestatus.do?appReceiptNum=RECEIPT_NUM';\n",
    "var PREFIX = 'EAC';\n",
    "var START_NUMBER = 1690149000;\n",
    "var END_NUMBER = 1690180000;\n",
    "\n",
    "var receiptNumbers = [];\n",
    "for (var i = START_NUMBER; i < END_NUMBER; i++) {\n",
    "  receiptNumbers.push(PREFIX + i);\n",
    "}\n",
    "fs.writeFileSync('raw_data.csv', 'receipt,title,text\\n');\n",
    "\n",
    "function retrieveReceiptNumber(receiptNumber, callback) {\n",
    "  request({\n",
    "      url: URL.replace('RECEIPT_NUM', receiptNumber),\n",
    "      rejectUnauthorized: false,\n",
    "      proxy: 'http://localhost:8888',\n",
    "      tunnel: false // remember to set tunnel to false\n",
    "    },\n",
    "    function (err, resp, body) {\n",
    "      if (err) {\n",
    "        console.error(err);\n",
    "      }\n",
    "      var $ = cheerio.load(body);\n",
    "      var title = $('.appointment-sec').find('.text-center').find('h1').text();\n",
    "      var description = $('.appointment-sec').find('.text-center').find('p').text();\n",
    "\n",
    "      var violation = $('label[for=accessviolation]').text();\n",
    "\n",
    "      if (title.length == 0) {\n",
    "        if (violation.length > 0) {\n",
    "          console.log('access violation');\n",
    "        }\n",
    "        callback();\n",
    "      } else {\n",
    "        var row = [\n",
    "          [receiptNumber, title, description]\n",
    "        ];\n",
    "\n",
    "        stringify(row, function (err, output) {\n",
    "          if (err) {\n",
    "            console.error(err);\n",
    "          }\n",
    "          fs.appendFile('raw_data.csv', output, function (err) {\n",
    "            if (err) {\n",
    "              console.error(err);\n",
    "            }\n",
    "            console.log(receiptNumber + ' written');\n",
    "            callback();\n",
    "          });\n",
    "        });\n",
    "      }\n",
    "    });\n",
    "}\n",
    "\n",
    "async.eachLimit(receiptNumbers, 100, retrieveReceiptNumber, function (err) {\n",
    "  if (err) {\n",
    "    console.error(err);\n",
    "  }\n",
    "  console.log('DONE');\n",
    "});\n",
    "```\n",
    "\n",
    "The changes are in the options object passed to `request`:\n",
    "\n",
    "```js\n",
    "{\n",
    "  url: URL.replace('RECEIPT_NUM', receiptNumber),\n",
    "  rejectUnauthorized: false,\n",
    "  proxy: 'http://localhost:8888',\n",
    "  tunnel: false // remember to set tunnel to false\n",
    "}\n",
    "```\n",
    "\n",
    "This allows me to scrape the receipt numbers very quickly within the hour. (see the `eachLimit` for `async`? I'm making 100 requests at any time through the proxy). I collected the scraped results into `raw_data_eac.csv` and `raw_data_ysc.csv` for the two prefixes.\n",
    "\n",
    "Now let's analyze them."
   ]
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   "source": [
    "import csv\n",
    "import pandas"
   ]
  },
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Parsing Data\n",
    "\n",
    "Earlier, I only scraped the raw data from the pages. Hence, I only have the `receipt` (receipt number), `title` (the short line of text displayed at the top of each case status) and `text` (the full text of the case status). This is hardly useful. Here's what the raw data looks like:"
   ]
  },
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   "cell_type": "code",
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   "source": [
    "data_eac = pandas.read_csv('raw_data_eac.csv')\n",
    "data_ysc = pandas.read_csv('raw_data_ysc.csv')\n",
    "data = data_eac.append(data_ysc)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
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       "<div>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>receipt</th>\n",
       "      <th>title</th>\n",
       "      <th>text</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>EAC1690120011</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>EAC1690120006</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
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       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>EAC1690120001</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>EAC1690120003</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 11, 2016, we transferred your Form I-...</td>\n",
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       "      <th>4</th>\n",
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       "      <th>5</th>\n",
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       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>6</th>\n",
       "      <td>EAC1690120012</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On May 13, 2016, the Post Office delivered you...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>7</th>\n",
       "      <td>EAC1690120010</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>8</th>\n",
       "      <td>EAC1690120000</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>9</th>\n",
       "      <td>EAC1690120004</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
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       "      <td>EAC1690120019</td>\n",
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       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>11</th>\n",
       "      <td>EAC1690120029</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On May 2, 2016, the Post Office delivered your...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>12</th>\n",
       "      <td>EAC1690120018</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>13</th>\n",
       "      <td>EAC1690120022</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>14</th>\n",
       "      <td>EAC1690120014</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>15</th>\n",
       "      <td>EAC1690120021</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>16</th>\n",
       "      <td>EAC1690120028</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>17</th>\n",
       "      <td>EAC1690120038</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On April 16, 2016, the Post Office delivered y...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>18</th>\n",
       "      <td>EAC1690120032</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On April 20, 2016, the Post Office delivered y...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>19</th>\n",
       "      <td>EAC1690120013</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
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       "    <tr>\n",
       "      <th>20</th>\n",
       "      <td>EAC1690120008</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>21</th>\n",
       "      <td>EAC1690120027</td>\n",
       "      <td>Case Was Approved</td>\n",
       "      <td>On April 29, 2016, we approved your Form I-765...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>22</th>\n",
       "      <td>EAC1690120049</td>\n",
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       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>23</th>\n",
       "      <td>EAC1690120050</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On May 20, 2016, the Post Office delivered you...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>24</th>\n",
       "      <td>EAC1690120039</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
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       "    <tr>\n",
       "      <th>25</th>\n",
       "      <td>EAC1690120007</td>\n",
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       "    <tr>\n",
       "      <th>26</th>\n",
       "      <td>EAC1690120024</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>27</th>\n",
       "      <td>EAC1690120017</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On February 22, 2016, we received your Form I-...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>28</th>\n",
       "      <td>EAC1690120015</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>29</th>\n",
       "      <td>EAC1690120034</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On May 20, 2016, the Post Office delivered you...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>...</th>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
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       "      <td>YSC1690079974</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72566</th>\n",
       "      <td>YSC1690079984</td>\n",
       "      <td>Case Was Received</td>\n",
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       "      <td>YSC1690079977</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
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       "      <th>72569</th>\n",
       "      <td>YSC1690079997</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
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       "    <tr>\n",
       "      <th>72570</th>\n",
       "      <td>YSC1690079965</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
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       "    <tr>\n",
       "      <th>72571</th>\n",
       "      <td>YSC1690079978</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72572</th>\n",
       "      <td>YSC1690079995</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72573</th>\n",
       "      <td>YSC1690079987</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72574</th>\n",
       "      <td>YSC1690079975</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72575</th>\n",
       "      <td>YSC1690079996</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72576</th>\n",
       "      <td>YSC1690079970</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72577</th>\n",
       "      <td>YSC1690079979</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72578</th>\n",
       "      <td>YSC1690079994</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72579</th>\n",
       "      <td>YSC1690079992</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72580</th>\n",
       "      <td>YSC1690079985</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72581</th>\n",
       "      <td>YSC1690079989</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72582</th>\n",
       "      <td>YSC1690079908</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72583</th>\n",
       "      <td>YSC1690079971</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72584</th>\n",
       "      <td>YSC1690079990</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72585</th>\n",
       "      <td>YSC1690079999</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72586</th>\n",
       "      <td>YSC1690079988</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72587</th>\n",
       "      <td>YSC1690079958</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72588</th>\n",
       "      <td>YSC1690079956</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72589</th>\n",
       "      <td>YSC1690079955</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72590</th>\n",
       "      <td>YSC1690079981</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72591</th>\n",
       "      <td>YSC1690079969</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72592</th>\n",
       "      <td>YSC1690079986</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72593</th>\n",
       "      <td>YSC1690079966</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-130, I...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72594</th>\n",
       "      <td>YSC1690079998</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "<p>129899 rows × 3 columns</p>\n",
       "</div>"
      ],
      "text/plain": [
       "             receipt                                              title  \\\n",
       "0      EAC1690120011  Case Was Transferred And A New Office Has Juri...   \n",
       "1      EAC1690120006  Case Was Transferred And A New Office Has Juri...   \n",
       "2      EAC1690120001  Case Was Transferred And A New Office Has Juri...   \n",
       "3      EAC1690120003  Case Was Transferred And A New Office Has Juri...   \n",
       "4      EAC1690120002  Case Was Transferred And A New Office Has Juri...   \n",
       "5      EAC1690120009  Case Was Transferred And A New Office Has Juri...   \n",
       "6      EAC1690120012        Card Was Delivered To Me By The Post Office   \n",
       "7      EAC1690120010  Case Was Transferred And A New Office Has Juri...   \n",
       "8      EAC1690120000  Case Was Transferred And A New Office Has Juri...   \n",
       "9      EAC1690120004  Case Was Transferred And A New Office Has Juri...   \n",
       "10     EAC1690120019  Case Was Transferred And A New Office Has Juri...   \n",
       "11     EAC1690120029        Card Was Delivered To Me By The Post Office   \n",
       "12     EAC1690120018  Case Was Transferred And A New Office Has Juri...   \n",
       "13     EAC1690120022  Case Was Transferred And A New Office Has Juri...   \n",
       "14     EAC1690120014  Case Was Transferred And A New Office Has Juri...   \n",
       "15     EAC1690120021  Case Was Transferred And A New Office Has Juri...   \n",
       "16     EAC1690120028  Case Was Transferred And A New Office Has Juri...   \n",
       "17     EAC1690120038        Card Was Delivered To Me By The Post Office   \n",
       "18     EAC1690120032        Card Was Delivered To Me By The Post Office   \n",
       "19     EAC1690120013  Case Was Transferred And A New Office Has Juri...   \n",
       "20     EAC1690120008  Case Was Transferred And A New Office Has Juri...   \n",
       "21     EAC1690120027                                  Case Was Approved   \n",
       "22     EAC1690120049  Case Was Transferred And A New Office Has Juri...   \n",
       "23     EAC1690120050        Card Was Delivered To Me By The Post Office   \n",
       "24     EAC1690120039  Case Was Transferred And A New Office Has Juri...   \n",
       "25     EAC1690120007  Case Was Transferred And A New Office Has Juri...   \n",
       "26     EAC1690120024  Case Was Transferred And A New Office Has Juri...   \n",
       "27     EAC1690120017                                  Case Was Received   \n",
       "28     EAC1690120015  Case Was Transferred And A New Office Has Juri...   \n",
       "29     EAC1690120034        Card Was Delivered To Me By The Post Office   \n",
       "...              ...                                                ...   \n",
       "72565  YSC1690079974                                  Case Was Received   \n",
       "72566  YSC1690079984                                  Case Was Received   \n",
       "72567  YSC1690079954                                  Case Was Received   \n",
       "72568  YSC1690079977                                  Case Was Received   \n",
       "72569  YSC1690079997                                  Case Was Received   \n",
       "72570  YSC1690079965                                  Case Was Received   \n",
       "72571  YSC1690079978                                  Case Was Received   \n",
       "72572  YSC1690079995                                  Case Was Received   \n",
       "72573  YSC1690079987                                  Case Was Received   \n",
       "72574  YSC1690079975                                  Case Was Received   \n",
       "72575  YSC1690079996                                  Case Was Received   \n",
       "72576  YSC1690079970                                  Case Was Received   \n",
       "72577  YSC1690079979                                  Case Was Received   \n",
       "72578  YSC1690079994                                  Case Was Received   \n",
       "72579  YSC1690079992                                  Case Was Received   \n",
       "72580  YSC1690079985                                  Case Was Received   \n",
       "72581  YSC1690079989                                  Case Was Received   \n",
       "72582  YSC1690079908                                  Case Was Received   \n",
       "72583  YSC1690079971                                  Case Was Received   \n",
       "72584  YSC1690079990                                  Case Was Received   \n",
       "72585  YSC1690079999                                  Case Was Received   \n",
       "72586  YSC1690079988                                  Case Was Received   \n",
       "72587  YSC1690079958                                  Case Was Received   \n",
       "72588  YSC1690079956                                  Case Was Received   \n",
       "72589  YSC1690079955                                  Case Was Received   \n",
       "72590  YSC1690079981                                  Case Was Received   \n",
       "72591  YSC1690079969                                  Case Was Received   \n",
       "72592  YSC1690079986                                  Case Was Received   \n",
       "72593  YSC1690079966                                  Case Was Received   \n",
       "72594  YSC1690079998                                  Case Was Received   \n",
       "\n",
       "                                                    text  \n",
       "0      On March 9, 2016, we transferred your Form I-7...  \n",
       "1      On March 9, 2016, we transferred your Form I-7...  \n",
       "2      On March 9, 2016, we transferred your Form I-7...  \n",
       "3      On March 11, 2016, we transferred your Form I-...  \n",
       "4      On March 9, 2016, we transferred your Form I-7...  \n",
       "5      On March 9, 2016, we transferred your Form I-7...  \n",
       "6      On May 13, 2016, the Post Office delivered you...  \n",
       "7      On March 9, 2016, we transferred your Form I-7...  \n",
       "8      On March 9, 2016, we transferred your Form I-7...  \n",
       "9      On March 9, 2016, we transferred your Form I-7...  \n",
       "10     On March 9, 2016, we transferred your Form I-7...  \n",
       "11     On May 2, 2016, the Post Office delivered your...  \n",
       "12     On March 9, 2016, we transferred your Form I-7...  \n",
       "13     On March 9, 2016, we transferred your Form I-7...  \n",
       "14     On March 9, 2016, we transferred your Form I-7...  \n",
       "15     On March 9, 2016, we transferred your Form I-7...  \n",
       "16     On March 9, 2016, we transferred your Form I-7...  \n",
       "17     On April 16, 2016, the Post Office delivered y...  \n",
       "18     On April 20, 2016, the Post Office delivered y...  \n",
       "19     On March 9, 2016, we transferred your Form I-7...  \n",
       "20     On March 9, 2016, we transferred your Form I-7...  \n",
       "21     On April 29, 2016, we approved your Form I-765...  \n",
       "22     On March 9, 2016, we transferred your Form I-7...  \n",
       "23     On May 20, 2016, the Post Office delivered you...  \n",
       "24     On March 9, 2016, we transferred your Form I-7...  \n",
       "25     On March 9, 2016, we transferred your Form I-7...  \n",
       "26     On March 9, 2016, we transferred your Form I-7...  \n",
       "27     On February 22, 2016, we received your Form I-...  \n",
       "28     On March 9, 2016, we transferred your Form I-7...  \n",
       "29     On May 20, 2016, the Post Office delivered you...  \n",
       "...                                                  ...  \n",
       "72565  On May 9, 2016, we received your Form I-765, A...  \n",
       "72566  On May 9, 2016, we received your Form I-765, A...  \n",
       "72567  On May 9, 2016, we received your Form I-765, A...  \n",
       "72568  On May 9, 2016, we received your Form I-765, A...  \n",
       "72569  On May 9, 2016, we received your Form I-765, A...  \n",
       "72570  On May 9, 2016, we received your Form I-765, A...  \n",
       "72571  On May 9, 2016, we received your Form I-765, A...  \n",
       "72572  On May 9, 2016, we received your Form I-765, A...  \n",
       "72573  On May 9, 2016, we received your Form I-765, A...  \n",
       "72574  On May 9, 2016, we received your Form I-765, A...  \n",
       "72575  On May 9, 2016, we received your Form I-765, A...  \n",
       "72576  On May 9, 2016, we received your Form I-765, A...  \n",
       "72577  On May 9, 2016, we received your Form I-765, A...  \n",
       "72578  On May 9, 2016, we received your Form I-765, A...  \n",
       "72579  On May 9, 2016, we received your Form I-765, A...  \n",
       "72580  On May 9, 2016, we received your Form I-765, A...  \n",
       "72581  On May 9, 2016, we received your Form I-765, A...  \n",
       "72582  On May 9, 2016, we received your Form I-765, A...  \n",
       "72583  On May 9, 2016, we received your Form I-765, A...  \n",
       "72584  On May 9, 2016, we received your Form I-765, A...  \n",
       "72585  On May 9, 2016, we received your Form I-765, A...  \n",
       "72586  On May 9, 2016, we received your Form I-765, A...  \n",
       "72587  On May 9, 2016, we received your Form I-765, A...  \n",
       "72588  On May 9, 2016, we received your Form I-765, A...  \n",
       "72589  On May 9, 2016, we received your Form I-765, A...  \n",
       "72590  On May 9, 2016, we received your Form I-765, A...  \n",
       "72591  On May 9, 2016, we received your Form I-765, A...  \n",
       "72592  On May 9, 2016, we received your Form I-765, A...  \n",
       "72593  On May 9, 2016, we received your Form I-130, I...  \n",
       "72594  On May 9, 2016, we received your Form I-765, A...  \n",
       "\n",
       "[129899 rows x 3 columns]"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "data"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "I can use this information to create a `status` for each receipt number. I'm using a lot of simplifying assupmtions here and disregarding a lot of corner cases (USCIS sometimes requests additional evidence, does weird thing with cases etc.) In fact, let's take a look at the vaious case `title`s:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "title\n",
       "Amended Notice Was Mailed                                                             8\n",
       "Appeal Was Dismissed                                                                  9\n",
       "Card Is Being Returned to USCIS by Post Office                                       10\n",
       "Card Returned Undeliverable                                                           4\n",
       "Card Was Delivered To Me By The Post Office                                       11434\n",
       "Card Was Determined As Undeliverable By The Post Office                              26\n",
       "Card Was Mailed To Me                                                              2045\n",
       "Card Was Picked Up By The United States Postal Service                              162\n",
       "Card Was Received By USCIS Along With My Letter                                       4\n",
       "Card Was Returned And USCIS Is Holding It For One Year                               20\n",
       "Card Was Returned To USCIS By Post Office                                             7\n",
       "Case Is Pending at a Local Office                                                   449\n",
       "Case Rejected Because I Sent An Incorrect Fee                                      1942\n",
       "Case Rejected Because The Version Of The Form I Sent Is No Longer Accepted           64\n",
       "Case Rejected For Form Not Signed And Incorrect Form Version                         38\n",
       "Case Rejected For Incorrect Fee And Form Not Signed                                  94\n",
       "Case Rejected For Incorrect Fee, Payment Not Signed And Incorrect Form Version       10\n",
       "Case Terminated Benefit Received By Other Means                                      35\n",
       "Case Transferred And New Office Has Jurisdiction                                      1\n",
       "Case Transferred To Another Office                                                 1068\n",
       "Case Was Approved                                                                  4558\n",
       "Case Was Received                                                                 63510\n",
       "Case Was Received At My Local Office                                               6210\n",
       "Case Was Rejected                                                                    81\n",
       "Case Was Rejected Because I Did Not Sign My Form                                    836\n",
       "Case Was Rejected Because It Was Improperly Filed                                  1291\n",
       "Case Was Reopened                                                                    11\n",
       "Case Was Reopened For Reconsideration                                                 1\n",
       "Case Was Sent To The Department of State                                          10569\n",
       "Case Was Transferred And A New Office Has Jurisdiction                            14926\n",
       "Case Was Transferred To An Asylum Office                                              1\n",
       "Case Was Transferred To Schedule An Interview                                         1\n",
       "Correspondence Was Received And USCIS Is Reviewing It                               133\n",
       "Date of Birth Was Updated                                                           236\n",
       "Decision Notice Mailed                                                              169\n",
       "Document Was Mailed To Me                                                             2\n",
       "Duplicate Notice Was Mailed                                                          15\n",
       "Fee Refund Was Mailed                                                                 2\n",
       "Fee Was Not Corrected                                                                 1\n",
       "Fee Will Be Refunded                                                                  2\n",
       "Fees Were Waived                                                                    249\n",
       "Fingerprint Fee Has Issues That Need To Be Fixed                                      8\n",
       "Fingerprint Fee Was Received                                                        577\n",
       "Name Was Updated                                                                   1245\n",
       "New Card Is Being Produced                                                         1862\n",
       "Notice Explaining USCIS' Actions Was Mailed                                         179\n",
       "Notice Was Returned To USCIS Because The Post Office Could Not Deliver It           365\n",
       "Payment Fee Was Returned For Insufficient Funds                                      41\n",
       "Receipt Notice Was Changed                                                           58\n",
       "Request for Additional Evidence Was Mailed                                          861\n",
       "Request for Initial Evidence Was Mailed                                            3262\n",
       "Response To USCIS' Request For Evidence Was Received                                940\n",
       "Withdrawal Acknowledgement Notice Was Sent                                           24\n",
       "Name: receipt, dtype: int64"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "data.groupby('title').count()['receipt']"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "I ignore most of the corner cases and only look at a few larger categories:\n",
    "\n",
    "- If the word `I-765` appears in the `text` of a case (since we are only looking at OPT cases), and `Case Was Received` is in the `title`, then the case is still processing. This happens when USCIS receives the case. Most people enduring the long 60 to 90 day wait will see this.\n",
    "- If the word `I-765` appears in the `text` of a case, and `Case Was Transferred` is in the `title`, then the case was probably submitted to the Vermont office first then routed to the Potomac office. This is still `processing` as well.\n",
    "- If the word `I-765` appears in the `text` of a case, and `Case Was Rejected`, well sucks for you. The case is rejected.\n",
    "- If the word `I-765` appears in the `text` of a case and `Case Was Approved`, congratulations! Your case is approved.\n",
    "- Even better, if a card is made and being delieverd, you'd have the `Card Was Delivered To Me By The Post Office` in the `title` of the case.\n",
    "- Finally, if your card is being made and still not delivered, you'd have the title `New Card Is Being Produced`\n",
    "\n",
    "I make a silly function for this and iterate over each row of the dataframe."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "def gen_status(row):\n",
    "    if 'I-765' in row['text'] and 'Case Was Received' in row['title']:\n",
    "        return 'processing'\n",
    "    if 'I-765' in row['text'] and 'Case Was Transferred' in row['title']:\n",
    "        return 'processing'\n",
    "    if 'I-765' in row['text'] and 'Case Was Rejected' in row['title']:\n",
    "        return 'rejected'\n",
    "    if 'I-765' in row['text'] and 'Case Was Approved' in row['title']:\n",
    "        return 'approved'\n",
    "    if row['title'] == 'Card Was Delivered To Me By The Post Office':\n",
    "        return 'approved'\n",
    "    if row['title'] == 'New Card Is Being Produced':\n",
    "        return 'approved'\n",
    "    return ''\n",
    "\n",
    "data_24['status'] = data_24.apply(gen_status, axis=1)\n",
    "data_26['status'] = data_26.apply(gen_status, axis=1)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Now here's a slightly harder part. Only in the `Case Was Received` cases do we have a **submission date** for the OPT application. For the others (approved or rejected) the case status `text` only contains the date that the case was approved (which I am really not interested in for now). I want to know when those cases are **submitted**. Fortunately, I can again exploit the fact that the numbers are in increasing order. When the date of a case cannot be determined, I simply look backwards (to earlier receipt numbers) to the last known date of a still processing case. This gives me a good approximation of the submission dates of approved / rejected cases."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "import re\n",
    "import numpy\n",
    "pattern = re.compile('On ([A-z]+ [0-9]+, [0-9]+),')\n",
    "\n",
    "last_date = None\n",
    "def extract_date(row):\n",
    "    if row['status'] == 'processing':\n",
    "        m = pattern.search(row['text'])\n",
    "        global last_date\n",
    "        last_date = numpy.datetime64(pandas.Timestamp(m.group(1)))\n",
    "        return last_date\n",
    "    return last_date\n",
    "\n",
    "data['date'] = data.apply(extract_date, axis=1)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Our processed data looks like this:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>receipt</th>\n",
       "      <th>title</th>\n",
       "      <th>text</th>\n",
       "      <th>status</th>\n",
       "      <th>date</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>EAC1690120011</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>EAC1690120006</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>EAC1690120001</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>EAC1690120003</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 11, 2016, we transferred your Form I-...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-11</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>EAC1690120002</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>EAC1690120009</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>6</th>\n",
       "      <td>EAC1690120012</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On May 13, 2016, the Post Office delivered you...</td>\n",
       "      <td>approved</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>7</th>\n",
       "      <td>EAC1690120010</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>8</th>\n",
       "      <td>EAC1690120000</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>9</th>\n",
       "      <td>EAC1690120004</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>10</th>\n",
       "      <td>EAC1690120019</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>11</th>\n",
       "      <td>EAC1690120029</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On May 2, 2016, the Post Office delivered your...</td>\n",
       "      <td>approved</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>12</th>\n",
       "      <td>EAC1690120018</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>13</th>\n",
       "      <td>EAC1690120022</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>14</th>\n",
       "      <td>EAC1690120014</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>15</th>\n",
       "      <td>EAC1690120021</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>16</th>\n",
       "      <td>EAC1690120028</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>17</th>\n",
       "      <td>EAC1690120038</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On April 16, 2016, the Post Office delivered y...</td>\n",
       "      <td>approved</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>18</th>\n",
       "      <td>EAC1690120032</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On April 20, 2016, the Post Office delivered y...</td>\n",
       "      <td>approved</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>19</th>\n",
       "      <td>EAC1690120013</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>20</th>\n",
       "      <td>EAC1690120008</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>21</th>\n",
       "      <td>EAC1690120027</td>\n",
       "      <td>Case Was Approved</td>\n",
       "      <td>On April 29, 2016, we approved your Form I-765...</td>\n",
       "      <td>approved</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>22</th>\n",
       "      <td>EAC1690120049</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>23</th>\n",
       "      <td>EAC1690120050</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On May 20, 2016, the Post Office delivered you...</td>\n",
       "      <td>approved</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>24</th>\n",
       "      <td>EAC1690120039</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>25</th>\n",
       "      <td>EAC1690120007</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>26</th>\n",
       "      <td>EAC1690120024</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>27</th>\n",
       "      <td>EAC1690120017</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On February 22, 2016, we received your Form I-...</td>\n",
       "      <td></td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>28</th>\n",
       "      <td>EAC1690120015</td>\n",
       "      <td>Case Was Transferred And A New Office Has Juri...</td>\n",
       "      <td>On March 9, 2016, we transferred your Form I-7...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>29</th>\n",
       "      <td>EAC1690120034</td>\n",
       "      <td>Card Was Delivered To Me By The Post Office</td>\n",
       "      <td>On May 20, 2016, the Post Office delivered you...</td>\n",
       "      <td>approved</td>\n",
       "      <td>2016-03-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>...</th>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72565</th>\n",
       "      <td>YSC1690079974</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72566</th>\n",
       "      <td>YSC1690079984</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72567</th>\n",
       "      <td>YSC1690079954</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72568</th>\n",
       "      <td>YSC1690079977</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72569</th>\n",
       "      <td>YSC1690079997</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72570</th>\n",
       "      <td>YSC1690079965</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72571</th>\n",
       "      <td>YSC1690079978</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72572</th>\n",
       "      <td>YSC1690079995</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72573</th>\n",
       "      <td>YSC1690079987</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72574</th>\n",
       "      <td>YSC1690079975</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72575</th>\n",
       "      <td>YSC1690079996</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72576</th>\n",
       "      <td>YSC1690079970</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72577</th>\n",
       "      <td>YSC1690079979</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72578</th>\n",
       "      <td>YSC1690079994</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72579</th>\n",
       "      <td>YSC1690079992</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72580</th>\n",
       "      <td>YSC1690079985</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72581</th>\n",
       "      <td>YSC1690079989</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72582</th>\n",
       "      <td>YSC1690079908</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72583</th>\n",
       "      <td>YSC1690079971</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72584</th>\n",
       "      <td>YSC1690079990</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72585</th>\n",
       "      <td>YSC1690079999</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72586</th>\n",
       "      <td>YSC1690079988</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72587</th>\n",
       "      <td>YSC1690079958</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72588</th>\n",
       "      <td>YSC1690079956</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72589</th>\n",
       "      <td>YSC1690079955</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72590</th>\n",
       "      <td>YSC1690079981</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72591</th>\n",
       "      <td>YSC1690079969</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72592</th>\n",
       "      <td>YSC1690079986</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72593</th>\n",
       "      <td>YSC1690079966</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-130, I...</td>\n",
       "      <td></td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>72594</th>\n",
       "      <td>YSC1690079998</td>\n",
       "      <td>Case Was Received</td>\n",
       "      <td>On May 9, 2016, we received your Form I-765, A...</td>\n",
       "      <td>processing</td>\n",
       "      <td>2016-05-09</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "<p>129899 rows × 5 columns</p>\n",
       "</div>"
      ],
      "text/plain": [
       "             receipt                                              title  \\\n",
       "0      EAC1690120011  Case Was Transferred And A New Office Has Juri...   \n",
       "1      EAC1690120006  Case Was Transferred And A New Office Has Juri...   \n",
       "2      EAC1690120001  Case Was Transferred And A New Office Has Juri...   \n",
       "3      EAC1690120003  Case Was Transferred And A New Office Has Juri...   \n",
       "4      EAC1690120002  Case Was Transferred And A New Office Has Juri...   \n",
       "5      EAC1690120009  Case Was Transferred And A New Office Has Juri...   \n",
       "6      EAC1690120012        Card Was Delivered To Me By The Post Office   \n",
       "7      EAC1690120010  Case Was Transferred And A New Office Has Juri...   \n",
       "8      EAC1690120000  Case Was Transferred And A New Office Has Juri...   \n",
       "9      EAC1690120004  Case Was Transferred And A New Office Has Juri...   \n",
       "10     EAC1690120019  Case Was Transferred And A New Office Has Juri...   \n",
       "11     EAC1690120029        Card Was Delivered To Me By The Post Office   \n",
       "12     EAC1690120018  Case Was Transferred And A New Office Has Juri...   \n",
       "13     EAC1690120022  Case Was Transferred And A New Office Has Juri...   \n",
       "14     EAC1690120014  Case Was Transferred And A New Office Has Juri...   \n",
       "15     EAC1690120021  Case Was Transferred And A New Office Has Juri...   \n",
       "16     EAC1690120028  Case Was Transferred And A New Office Has Juri...   \n",
       "17     EAC1690120038        Card Was Delivered To Me By The Post Office   \n",
       "18     EAC1690120032        Card Was Delivered To Me By The Post Office   \n",
       "19     EAC1690120013  Case Was Transferred And A New Office Has Juri...   \n",
       "20     EAC1690120008  Case Was Transferred And A New Office Has Juri...   \n",
       "21     EAC1690120027                                  Case Was Approved   \n",
       "22     EAC1690120049  Case Was Transferred And A New Office Has Juri...   \n",
       "23     EAC1690120050        Card Was Delivered To Me By The Post Office   \n",
       "24     EAC1690120039  Case Was Transferred And A New Office Has Juri...   \n",
       "25     EAC1690120007  Case Was Transferred And A New Office Has Juri...   \n",
       "26     EAC1690120024  Case Was Transferred And A New Office Has Juri...   \n",
       "27     EAC1690120017                                  Case Was Received   \n",
       "28     EAC1690120015  Case Was Transferred And A New Office Has Juri...   \n",
       "29     EAC1690120034        Card Was Delivered To Me By The Post Office   \n",
       "...              ...                                                ...   \n",
       "72565  YSC1690079974                                  Case Was Received   \n",
       "72566  YSC1690079984                                  Case Was Received   \n",
       "72567  YSC1690079954                                  Case Was Received   \n",
       "72568  YSC1690079977                                  Case Was Received   \n",
       "72569  YSC1690079997                                  Case Was Received   \n",
       "72570  YSC1690079965                                  Case Was Received   \n",
       "72571  YSC1690079978                                  Case Was Received   \n",
       "72572  YSC1690079995                                  Case Was Received   \n",
       "72573  YSC1690079987                                  Case Was Received   \n",
       "72574  YSC1690079975                                  Case Was Received   \n",
       "72575  YSC1690079996                                  Case Was Received   \n",
       "72576  YSC1690079970                                  Case Was Received   \n",
       "72577  YSC1690079979                                  Case Was Received   \n",
       "72578  YSC1690079994                                  Case Was Received   \n",
       "72579  YSC1690079992                                  Case Was Received   \n",
       "72580  YSC1690079985                                  Case Was Received   \n",
       "72581  YSC1690079989                                  Case Was Received   \n",
       "72582  YSC1690079908                                  Case Was Received   \n",
       "72583  YSC1690079971                                  Case Was Received   \n",
       "72584  YSC1690079990                                  Case Was Received   \n",
       "72585  YSC1690079999                                  Case Was Received   \n",
       "72586  YSC1690079988                                  Case Was Received   \n",
       "72587  YSC1690079958                                  Case Was Received   \n",
       "72588  YSC1690079956                                  Case Was Received   \n",
       "72589  YSC1690079955                                  Case Was Received   \n",
       "72590  YSC1690079981                                  Case Was Received   \n",
       "72591  YSC1690079969                                  Case Was Received   \n",
       "72592  YSC1690079986                                  Case Was Received   \n",
       "72593  YSC1690079966                                  Case Was Received   \n",
       "72594  YSC1690079998                                  Case Was Received   \n",
       "\n",
       "                                                    text      status  \\\n",
       "0      On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "1      On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "2      On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "3      On March 11, 2016, we transferred your Form I-...  processing   \n",
       "4      On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "5      On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "6      On May 13, 2016, the Post Office delivered you...    approved   \n",
       "7      On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "8      On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "9      On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "10     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "11     On May 2, 2016, the Post Office delivered your...    approved   \n",
       "12     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "13     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "14     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "15     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "16     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "17     On April 16, 2016, the Post Office delivered y...    approved   \n",
       "18     On April 20, 2016, the Post Office delivered y...    approved   \n",
       "19     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "20     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "21     On April 29, 2016, we approved your Form I-765...    approved   \n",
       "22     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "23     On May 20, 2016, the Post Office delivered you...    approved   \n",
       "24     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "25     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "26     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "27     On February 22, 2016, we received your Form I-...               \n",
       "28     On March 9, 2016, we transferred your Form I-7...  processing   \n",
       "29     On May 20, 2016, the Post Office delivered you...    approved   \n",
       "...                                                  ...         ...   \n",
       "72565  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72566  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72567  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72568  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72569  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72570  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72571  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72572  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72573  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72574  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72575  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72576  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72577  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72578  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72579  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72580  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72581  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72582  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72583  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72584  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72585  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72586  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72587  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72588  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72589  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72590  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72591  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72592  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "72593  On May 9, 2016, we received your Form I-130, I...               \n",
       "72594  On May 9, 2016, we received your Form I-765, A...  processing   \n",
       "\n",
       "            date  \n",
       "0     2016-03-09  \n",
       "1     2016-03-09  \n",
       "2     2016-03-09  \n",
       "3     2016-03-11  \n",
       "4     2016-03-09  \n",
       "5     2016-03-09  \n",
       "6     2016-03-09  \n",
       "7     2016-03-09  \n",
       "8     2016-03-09  \n",
       "9     2016-03-09  \n",
       "10    2016-03-09  \n",
       "11    2016-03-09  \n",
       "12    2016-03-09  \n",
       "13    2016-03-09  \n",
       "14    2016-03-09  \n",
       "15    2016-03-09  \n",
       "16    2016-03-09  \n",
       "17    2016-03-09  \n",
       "18    2016-03-09  \n",
       "19    2016-03-09  \n",
       "20    2016-03-09  \n",
       "21    2016-03-09  \n",
       "22    2016-03-09  \n",
       "23    2016-03-09  \n",
       "24    2016-03-09  \n",
       "25    2016-03-09  \n",
       "26    2016-03-09  \n",
       "27    2016-03-09  \n",
       "28    2016-03-09  \n",
       "29    2016-03-09  \n",
       "...          ...  \n",
       "72565 2016-05-09  \n",
       "72566 2016-05-09  \n",
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       "72582 2016-05-09  \n",
       "72583 2016-05-09  \n",
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       "72593 2016-05-09  \n",
       "72594 2016-05-09  \n",
       "\n",
       "[129899 rows x 5 columns]"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "data"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Results\n",
    "\n",
    "Now I can look at the results. First, I group the data by the `date` column. Cases (rows) with the same date will be grouped together. Then, for each date, I count the number of `processing`, `approved`, and `rejected` cases."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "result = pandas.DataFrame(data[data['status'] == 'processing'].groupby('date')['receipt'].count())\n",
    "result['approved'] = data[data['status'] == 'approved'].groupby('date')['receipt'].count()\n",
    "result['rejected'] = data[data['status'] == 'rejected'].groupby('date')['receipt'].count()\n",
    "result.columns = ['Processing', 'Approved', 'Rejected']"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "And I make a silly plot."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
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     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
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   "source": [
    "Here's how to interpret this data. I can see that most of the cases submitted in February and early March are already processed. The ones submitted in later March are around 50% processed. The ones submitted in late March (like mine) are beginning to get approved.\n",
    "\n",
    "For each date, I can see the number of cases approved, rejected, processing etc."
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     "data": {
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       "Processing    2069.0\n",
       "Approved       328.0\n",
       "Rejected         5.0\n",
       "Name: 2016-03-30 00:00:00, dtype: float64"
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   "source": [
    "I can make this more readable by dividing the number of approved cases by the total number of processing, approved, and rejected cases."
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    "result['Total'] = result['Processing'] + result['Approved'] + result['Rejected']\n",
    "result['Approved Proportion'] = result['Approved'] / result['Total']\n",
    "result['Approved Proportion'].plot()"
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   "source": [
    "I really don't understand why USCIS would not release this data (since it will help calm the nerves of so many international students). I do hope that this will help calm your nerves though as it did calm mine."
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