MS Internet Explorer No 530014 86.2 %
Mozilla No 30820 5 %
Netscape No 24715 4 %
Opera No 10728 1.7 %
Safari No 8483 1.3 %
Unknown ? 4504 0.7 %
Firebird No 834 0.1 %
Nokia Browser (PDA/Phone browser) No 801 0.1 %
WebTV browser No 653 0.1 %
Konqueror No 467 0 %
Hits to one of my sites this month. All porn surfers and not techy types

Shows you gotta be careful where you get stats from.
As has been said though it's generally daft not to make sure a site works in all browsers. Good coding shouldn't have a problem anyway and only takes a few seconds to fire up firefox etc if you don't use them by default and check.