Almost 12 million units for Infinity Ward's blockbuster.

Call of Duty: Modern Warfare 2 screenshot

According to data published by Top Global Markets, an integrated monthly report from leading providers of consumer and retail information in the video games industry, The NPD Group, GfK Chart-Track Limited and Enterbrain, Inc., Activision's Call of Duty: Modern Warfare 2 sold 11.86 million units worldwide in 2009.

Of this 11.86 million, a huge 8.82 million was accounted for in the US, 2.8 million in the UK and a meagre 237,500 in Japan.

The rest of the year's Top 5 selling games were all exclusive to the Wii: Wii Sports Resort, New Super Mario Bros. Wii, Wii Fit Plus and Wii Fit.

Call of Duty: Modern Warfare 2
Total: 11.86 million
US: 8.82 million
Japan: 237,500
UK: 2.8 million

Wii Sports Resort
Total: 7.57 million
US: 4.54 million
Japan: 1.54 million
UK: 1.49 million

New Super Mario Bros. Wii
Total: 7.41 million
US: 4.23 million
Japan: 2.49 million
UK: 687,300

Wii Fit Plus
Total: 5.8 million
US: 3.53 million
Japan: 1.3 million
UK: 968,300

Wii Fit
Total: 5.44 million
US: 3.6 million
Japan: 588,300
UK: 1.25 million

Via MCV