Add cumulative frequency of attendance by reputables

[brenzi]

Like fig 3 in https://encointer.org/charting-the-development-of-encointers-longest-established-community-currency/

Provide a plot and CSV with all the relevant raw and calculated data in the "internal" space

this plot should be public

[pifragile]

what is the x axis of this plot? and how do we exactly measure this? because our model is that people should use different keys for different cycles, right?

[pifragile]

@brenzi this chart only works under the assumption that people always use the same account. this kinda contradicts our assumptions, right? should we still proceed with it?

[brenzi]

True, but thats the way people use the protocol, currently. So I think we can proceed anyway