(Rumor) December 2016 PS4/X1 NPD Estimates

[NATO]

zorg1000 said:
PS4
2013-2.0 million
2014-4.68 million
2015-5.73 million
2016-5.1 million
LTD-17.5 million

XBO
2013-1.82 million
2014-4.37 million
2015-4.93 million
2016-4.73 million
LTD-15.85 million

Using these numbers it's:

Gap:

2013 - 180k behind ps4
2014 - 310k behind ps4
2015 - 800k behind ps4
2016 - 370k behind ps4

How much the xbox one has caught up to the ps4 since 2013 (i.e. fallen behind):  -1.66million 

Goatseye said:

There are reasons for everything. I just don't find one for getting worked up over good Xbox performances in the last NPD/sales threads.

Good, it'd be pretty unhealthy if you were getting worked up over a forum thread.