PS3 software tie ratio at 9.16 games for every system

[Carl]

RolStoppable said:
That's a nice number, but how much of that can be credited to first party games?

http://www.vgchartz.com/gamedb/?name=&publisher=1535&console=PS3&genre=&minSales=0&results=200

Sony have sold ~97.5 Million units of SW on PS3.

To answer your question - Not a lot... Although I think it's more than any 3rd party.