Capcom Sales Figures, including RE titles obviously
http://www.capcom.co.jp/ir/english/b...s/million.html

RE4 is surprisingly low. I keep forgetting that for all its revolutionary impact on gaming and beloved status, it has never been the top dog in terms of sales in the franchise.

Original RE1 being so high is interesting though. I thought for a second they were just adding up all the sales from all the crazy number of ports and whatnot but nope, just PS1 and only the original PS1 game at that. But seriously, if you add up every version of RE1's sales, I think it be #1.

That and REZero selling over a million copies (thus being a success, according to this) makes me feel vindicated in those two being the only RE games I care about anymore.