PS4 Hardware Sales 2015 vs 2016 vs 2017: New Years numbers posted. 2017 ends at 20.2 million

[PAOerfulone]

From what I've seen, they added an additional 300,000 to 2016's total. But that would only bring it from 17.1 to 17.4, still below 2015.
Now, here, I have an extra week for 2016, so that would bump it up to 18 million. But, both 2015 and 2016 were at 10 million by the time November came around, and they went on to an additional 7 million in the last two months.
2017 is already at 11 million, before the adjustment it was at 10 million, and we haven't even reached October.
Granted, it may not sell as well as it did the past 2 holiday seasons do to the Xbox One X and Nintendo Switch, but that's unlikely to have a considerable effect, especially since Sony countered with a $199 PS4 slim for the entire week of Black Friday.
It's looking more and more likely that 20 million is a lock.