This repository exists for one reason: next year, my mother will ask me to create an updated version of this figure.
Would this have been faster to do in excel? Yes. But at this moment, I don't have an Excel license, but I do know how to make good looking figures with matplotlib. The upside is, when I need to remake the figure next year, it will be easy.
Update (5 December 2017): I was correct. An updated figure was requested.
Update (2 July 2020): Well, hello again github repo. It's been a while.