Inspired by the fact that Google is "sitting" on tons of data regarding the Android platform that it isn't sharing with it's users and developers, I decided to go get this data on my own.
The following spreadsheet is the result of months of coding the first collaborative, open-source, Crawler of the "Google Play Store". I hope you like the results :D
Project : https://github.com/MarcelloLins/GooglePlayAppsCrawler
Excel File : https://s3.amazonaws.com/GooglePlayStore/Google%20Play%20Stats_2015_02.xlsx