https://winbuzzer.com/2017/06/19/microsoft-france-leak-shows-xbox-one-sales-figures-xcxwbn/

Article is dated as June 2017. If true, Xbox one is most likely undertracked on here. 

Microsoft has never officially revealed what sales figures for the Xbox One are. We do know that it has sold less than Sony’s PlayStation 4, but the extent of the deficit is unclear. Microsoft France may have let the proverbial cat out of the bag in a sale history demographic of the Xbox division.

The leaked infographic shows that Microsoft’s current-generation console has sold 36.2 million units. It also shows that the best-selling game on the device is Call of Duty: Black Ops II with 11.4 million units sold

 

It is unclear when this data was prepared, but we imagine it was recent. Whether 36.2 million is a respectable number or not depends on how you thought Xbox One was doing.