Using VGC's year end number I estimated and extended another year to the NPD chart (Adding Wii, Xbox 360 and PS3 last year estimates.) (I assume the real NPD data will be released in May of this year, but I didn't want to wait.)
For curiosity sake, I also added Kinect - as if it was its own console. It had a great first two years (only exceeded by the Wii and PS2), but has fallen in the third.
You can see all consoles down this last year. With the Wii having the biggest drop, the X360 second, and the PS3 with the lowest drop.
Edit: I added WiiU, and my estimates are highlighted in yellow.









