PS4 v XB1: 9m Gap By End Of March?

[Insidb]

DonFerrari said:
Have I lost myself in outer space??? Shouldn't the real numbers for end of 2015 be PS4 19-20M and X1 10-11M??? So PS4 is already at about 9M gap, outdated thread?

Don't you mean end 0f 2014? If so, I agree.