Predictions of new generation consoles sales

How much do you think new generation consoles will sell until they are replaced by next generation.

What I think.

Nintendo 3DS and 2DS- 75-85 million

PS Vita- 35-45 million

Wii U- 55-65 million

PS4- 65-75 million

Xbox One- 55-65 million

And now tell me what you think.