Update population.md

docs/population.md

@@ -293,7 +293,7 @@ Running the pipeline again will add the `mode` colum to the `trips.csv` file and
 
 ### Population projections
 
-The pipeline allows to make use of population projections from INSEE up to 2021. The same methodology can also be used to scale down the population. The process takes into account the marginal distribution of sex, age, their combination, and the total number of persons. The census data for the base year (see above) is reweighted according to those marginals using *Iterative Proportional Updating*.
+The pipeline allows to make use of population projections from INSEE up to 2070. The same methodology can also be used to scale down the population. The process takes into account the marginal distribution of sex, age, their combination, and the total number of persons. The census data for the base year (see above) is reweighted according to those marginals using *Iterative Proportional Updating*.
 
 - To make use of the scaling, [download the projection data from INSEE](https://www.insee.fr/fr/statistiques/5894093?sommaire=5760764). There are various scenarios in Excel format that you can choose from. The default is the *Scénario centrale*, the central scenario. 
 - Put the downloaded file into `data/projection_2021`, so you will have the file `data/projection_2021/00_central.xlsx`