Wii: 7.5 million (last legs)
360: 11 million (way down yoy)
PS3: 11.5 million (way down yoy)
DS: 4.5 million (grinding to a halt)
PSP: 3 million (same as above)
3DS: 20 million (good year, 2013 will be the peak year, handheld market is moving very fast)
Vita: 8.8 million (decent but still no Nintendo)
Wii U: 3.7 million (frontloaded near holiday launch, this depends heavily on launch price though, mine takes into account a launch price of around 350$)