The latest figures show that Microsoft's remaining presence in the mobile market is slowly falling to zero, with just one region covered by the report showing any increase.
The Kantar report covered the sales figures for the three months ending October. iTWire's Alex Zaharov-Reutt has a report here on the main trends in the Kantar figures.
In the US, Windows Phone sales share fell below 1%, going down from 1.2% in the three months ending October 2016 to 0.5% in the current three-month period.
The only increase in sales share was seen in China where there was an increase of 0.1%.