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

[PAOerfulone]

If I decide to continue on with this thread instead of starting another one for 2018, I'll most likely just do 2017 and 2018 and drop '15 and '16, since chances are 2018 will either be close to, equal, or better than 2017.

If 2018 is lagging noticeably and considerably behind 2017, (unlikely), then I'll bring back the prior two years.