In 2009 Modern Warfare 2 and all things Wii ruled the industry, but overall sales of videogames in the U.S., the UK, and Japan fell an average of 8% in 2009, according to an integrated report published today by Top Global Markets.

The combined videogame software sales, compiled by market research firms The NPD Group, GfK Chart-Track Limited, and Enterbrain, totaled 379.3 million and were led by these top five titles:

1. Call of Duty: Modern Warfare 2 -- 11.86 million
2. Wii Sports Resort -- 7.57 million
3. New Super Mario Bros. -- 7.41 million
4. Wii Fit Plus -- 5.8 million
5. Wii Fit -- 5.44 million

The data includes portable/handheld videogame software sales, which declined steeply everywhere except in Japan (down 25% in the UK), but the folks at Top Global Markets target dissolving PS2 sales as the mitigating factor in the overall decline: PS2 games experienced a freefall of 57% in 2009.