The Switch will be the first system since 2010 to sell 20 million in a Calendar year

[Jumpin]

Bluetits said:
Sony already confirmed directly that they sold 20.2 M on 2017. It's a fact. I brought this up to Trunks last year as they initially had 20.2M and they adjusted it down even after Sony specifically said 20.2M. So whether the op is using this sites numbers or not, they are still bullshit!

Where is this direct confirmation by Sony that they sold 20.2 million PS4s in the calendar year of 2017?

Because I'm reading differently: https://www.sony.net/SonyInfo/IR/library/presen/er/17q4_supplement.pdf

For the Calendar year 2017:
Q4 - 2.9
Q1 - 3.3
Q2 - 4.2
Q3 - 9.0 

Total = 19.4 million according to Sony.net.