Wicht
Hero
I was basing it on pretty extensive analysis done before, but it's not positive. Which is why, ultimately, the answer is "we don't know".
So, to be clear, you admit you're not sure as well, right? That's what "skeptical" means, right?
Do you plan to continue to make firm statements in the future that you're positive Pathfinder was outselling 4e at the time, next time this comes up?
I'd love it for this aspect of edition warring to end. If we could all just say "we don't know", and leave it at that. But, that seems to be a hopeless desire at this point. I'm guilty of it as well. But, it's not a good habit.
No. I am skeptical of your facts. Not of Pathfinder's performance.

To be clear, the "outselling" I was referring to was specifically book sales, which I think is the best long term measure of a Table-top RPG's strength (at least at the moment). All the evidence points to Pathfinder outperforming the competition in this one area at the time in question and I have no legitimate reason to doubt it was so. I am pleased for Paizo, but would be happy for WotC to perform better and for the market to grow for everyone.
I don't think of constructive analysis of the RPG market as edition warring. My point is not to rub 4e fans' faces in the dirt in triumph, saying, "see my game is better." I have a legitimate interest, as both a fan and a designer, in keeping abreast of developments in the market. I also enjoy discussing the ramifications of the evidence, such as it is, and I think it is relevant, in urging WotC to readopt the OGL for 5e, in pointing out the outstanding success of Paizo in utilizing this particular license to good effect for their brand. If there is edition warring, it is not on my part.