Bedrockgames
Legend
I don't recall if you've been in the discussions of who has the best sales before, but there's really not. Amazon numbers are pretty good, though they get quite a bit of abuse, and are from just one retailer. Paizo doesn't release any details about sales from their websites, none of the surveys from FLGS seem real solid, etc.
This is not necessarily numbers on actual sales, but has a huge advantage that it includes sales from all sources and nobody really has any motivation to skew the numbers.
I have been and dont care to enter that discussion again. Suffice to say I disagree with your conclusion here and believe there is ample reaosn to conclude that pathfinder is outselling 4E or at the very least taking a huge chunk of the market from Wotc. This library thing strikes me as not very reliable.