Browser usage on siggraph.org

I like to track the statistics on siggraph.org . Here is a comparison of the use of different browsers for the past year:

 
                       June, 2004        June, 2005
MS IE                     80%                57%
Netscape                   3%                 1.7%
Mozilla/Firefox            8%                22%
Safari (Mac)               5%                15.5%

So the SIGGRAPH crowd is slightly ahead of the rest of the world in moving away from IE. But they have always had a strong Mac/Unix component.