The information below comes from Nintendo’s latest financial briefing. All numbers are listed in terms of millions of units sold.
US
PS3 – 2.42
DS – 2.67
Xbox 360 – 3.45
3DS – 1.42
Wii – 2.36
PSP – .85
Europe
PS3 – 2.79
DS – 2.26
Xbox 360 – 1.98
3DS – 1.48
Wii – 2.01
PSP – 1.40
Japan
PS3 – 1.11
DS – .60
Xbox 360 – .09
3DS – 2.15
Wii – .55
PSP – 1.60
Source
http://gamingeverything.com/11117/2011-ytd-hardware-sales-in-the-us-europe-japan/