Like stats? Check out these browser, platform, color etc. stats...
 

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

Interesting trends over the last 3 years.

Perhaps those are stats off their own Website. Those stats probably apply to webmaster traffic. I don't think 21.5% of all Internet users are using FireFox.

From them....
(The statistics above are extracted from W3Schools' log-files, but we are also monitoring other sources around the Internet to assure the quality of these figures)