When will the Switch outsell the PS2 and pass 160M ?

[Evilms]

PS2 : more than 155.1 million (as of march 31, 2012).
PS2 ending production (as of January 4th, 2013).
PS2+PS3 sales during FY2012 (1st april 2012 - march 31, 2013) : 16.5 million.
Sony has mentioned a significant decrease in unit sales of PS3 for this year but nothing for the PS2.
Now Sony confirm they sold more than 160 million LTD (which makes sense).

So how PS2 sales units during her last year (FY2012) ?

The most intelligent will easily find the answer :3