"Got all evolution items in one month: Statistics"

#PokemonGO: Today I got the evolution item I needed to get my last evolution pokemon: Slowking.I've probably been quite lucky. But the thing is I've been keeping statistics and I'd like to show them to you.DateDaysStopsSt/DayItemsTotalItems/DayStops/Item19/02/2017215678221,0007804/03/201715133389130,20044405/03/201716147292140,25036807/03/201718168093260,33328010/03/201721208499170,33329812/03/2017232339102180,34829216/03/2017272698100190,333300(I have much more data, but just copied a simplified version of it)Please note that during the first 15 days I did not focus on spinning so much, since I assumed that 7 day streak would give me the item (also my statistics are a little less accurate in that period). In the next 15 days, I focused on increasing my spin rate and compiled everything, and the statistics seemed to start converging.Check the attached graph (http://ift.tt/2nwM6q1) and you'll see the statistics seem to start converging towards 1 evolution item every 300 pokestops. Anyway, of course still more data is needed to have more confidence on the results. I'll continue gathering data.P.S. This is probably a clumsy attempt of doing some science from me, but it's the thought that counts, right?EDIT: failed to attach the image: http://ift.tt/2nwM6q1 via /r/TheSilphRoad http://ift.tt/2neGfZm