2017 was solid year for Xbox One sales in spite of exclusvies.

[yvanjean]

DonFerrari said:
Considering sales have been close to 2015 and 2016 it have been stable.

This year sales have been slowdown by imminent release of a new console by Xbox. It will be interesting to compare Xbox one 2017 and 2018 there should be a major boost in sales.