Interesting, those stats are completely different from W3schools

http://www.w3schools.com/browsers/browsers_stats.asp

W3Schools are based only on their own site, so a very particular market (i.e. web-developers I'd guess) while Statcunter brings in stats from their embedded counter on millions of sites so might present a better overall view (not that any sampling will ever be perfect for this!)

Wikipedia actually has quite a nice overview with stats from various sources: http://en.wikipedia.org/wiki/Usage_share_of_web_browsers . It does look like it is a general trend - this is the transition period for Webkit replacing Gecko as the number 2 rendering engine on the web.

Thanks, I actually used W3Schools as a reliable source to know browser usage stats.