http://gs.statcounter.com/os-market-share/mobile/united-stat...
I was surprised by this figure, but it doesn't look true based on cursory google search?
Worldwide is at 77% http://gs.statcounter.com/os-market-share/mobile/worldwide/#...
Poland (#6 in the EU by population) is at 97% http://gs.statcounter.com/os-market-share/mobile/poland/#mon...