In the post game Recap after you finish a C&K game, if you go to the “Activity Stats” tab then scroll over the last 2 boxes you can see a pop up that describes that category as “Amount of Developement Cards bought” and “Amount of Developement Cards used”. It should be “Amount of Progress Cards bought” and “Amount of Progress Cards used”. Furthermore, it should also seperate between Science, Trade, Poltics cards that player bought and used. There appears to be enough space.