VGChartz appears to be a little behind, PS4 20.3 XBO 11.7 Wii U 9.3 ?

[Insidb]

Ka-pi96 said:
Yeah, I'll predict. Can't guarantee any degree of accuracy though...

PS4: 72m
Xbox One: 49m
Wii U: 36m
Vita: 91m
3DS: 101m
Ouya: 1b

Dude, I think you're off by a few thousand.