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.
I describe myself as a little dose of toxic masculinity.