This page presents web browser statistics from several sources that may be of interest to website designers.
Caution, stats mislead: caching skews raw data; audiences vary for each site; survey methods vary; surveys lack vital details; surveys mis-identify browsers; surveys include user agents that aren’t browsers; small sample sizes magnify fluctuations; and stats don’t count those who flee because their browsers aren’t supported. [more…] Opera 10 and 11 are special problems: naïve browser sniffers may identify then as Opera 9.
“Get your facts first, and then you can distort them as much as you please: facts are stubborn,
but statistics are more pliable” — Mark Twain
[more stats quotes…]
The table Usage Stats lists stats from several sources, showing how much stats can vary:
The best stats for a site are the stats gathered for that particular site: and even these are skewed by caching and faulty browser-detection. For example, consider Kerry Watson’s Browser Statistics page: this page uses three different hit counters whose reports should be comparable; but they are not, in part because of faulty browser detection.
Bottom line: use statistics with extreme caution.