http://ir.take2games.com/releasedetail.cfm?ReleaseID=449045 via neogaf
All shipment numbers, but nevertheles well done 
I heard 2k10 sucked and didn't deserve over 2 million sales though.
Product Milestones
- 2K Games launched BioShock 2 globally on February 9. The title has been a commercial and critical success, and has shipped over 3 million units to date. The original BioShock title launched in August 2007 has now sold over 4 million units, bringing the total sales of the franchise to 7 million units.
- NBA 2K10 from 2K Sports has shipped over 2 million units. The title continues to be the #1 selling and #1 rated basketball game for the Xbox 360 and PlayStation 3 through January 2010, according to The NPD Group's estimates of U.S. retail video game sales and Metacritic.com.
- Grand Theft Auto IV from Rockstar Games has sold over 15 million units globally.
- 2K Play's Carnival Games franchise has sold over 6 million units worldwide on the Wii and DS.
