https://www.nintendo.co.jp/ir/pdf/2018/180131e.pdf
Launch was 2.76 million
Forecast to add 15.00 million to that by March 31st
Currently at 14.86 million
https://www.nintendo.co.jp/ir/en/finance/hard_soft/index.html
Basically 2.9 million more Nintendo Switch for January, February, and March