I'm trying to determine global statistics (similar to StatCounter's) for a combination of Browser + OS. For example, 35% (or whatever) of users are on XP and IE8. StatCounter only displays one or the other (ex. 47.32% on XP, 30.20% on IE8).
Is anyone aware of a site that offers this information - preferably free of charge - or a way to glean it from StatCounter or others?