Ok, lets give this a try.
For some reason there's a significant difference between the Sony figures I pulled from the annual reports and the ones in this thread (Around $1bn profit since 1998). Not sure where the original creator of that data got his numbers from though so I can't work out how it happened. Seems mostly to be because of the first few years (1998 - 2000)
Data / Sources below... feel free to tell me I've got it all wrong if I've screwed it up somehow. Everything can be fact checked using the links provided.
Code:
New version on next page
Data sources are...
Microsoft Entertainment and Devices Division 2008, 2007, 2006 figures (
2008 annual report, operating income)
Microsoft Entertainment and Devices Division 2005 figures (
2007 annual report, operating income)
Microsoft Entertainment and Devices Division 2004 figures (
2006 annual report, operating income)
Microsoft Entertainment and Devices Division 2003 figures (
2005 annual report, operating income)
Microsoft Entertainment and Devices Division 2002 figures (
2004 annual report, operating income)
Sony Game Division 2008 figures (
2008 annual report, operating income page 92)
Sony Game Division 2007 figures (
2007 annual report, operating income page 67)
Sony Game Division 2006 figures (
2006 annual report, operating income page 136)
Sony Game Division 2005 figures (
2005 annual report, operating income page 128)
Sony Game Division 2004 figures (
2004 annual report, operating income page 93)
Sony Game Division 2003 figures (
2003 annual report, operating income page 144)
Sony Game Division 2002 figures (
2002 annual report, operating income page 72)
Sony Game Division 2001 figures (
2001 annual report, operating income page 132)
Sony Game Division 2000 figures (
2000 annual report, operating income page 95)
Sony Game Division 1999 figures (
1999 annual report, operating income page 74)
Sony Game Division 1998 figures (
1998 annual report, operating income page 73)
All Nintendo figures (
Consolidated Statements of Income)