Hi there, do anybody know what's happening today/yesterday at google play ranking

Hi there, do anybody know what's happening today/yesterday at google play ranking? My little app SirSpellalot  and almost all of the competitors i'm watching (not top 3 positions!) get a huge suck down for some keywords in USA, Brazil and Germany as far as I can see from my stats. androiddev   googleplaystore
Hi there, do anybody know what's happening today/yesterday at google play ranking
Mar 06, 2015, 2 General Discussion