Game companies generally treat those numbers as right below nuclear launch codes in terms of level of secrecy required, in part to prevent comparisons such as you are looking to make, so it can be difficult to find decent info... and definitive numbers are pretty much unheard of these days.
With that said, between the occasional PR release, the errant footnote in quarterly shareholder reports, etc., it is possible to make the occasional educated guess about such things on certain product lines. Once upon a time (a few years ago), there was a game design blogger who made it their quest to suss out such info. It looks like mmocharts.com is gone, but mmodata.net is a possible resource. The latest graphs don't have much recent info on any of the products above, but the site owner may have additional info, contacts, or resources that could be tapped.
