Nokia accounts for 88% of all Windows Phone handsets in use

Nokia handsets account for 88% of all Windows Phone devices in use as well as 9 out of the top 10 most used Windows Phone devices. Nokia’s budget Lumia 520 is the most used Windows Phone device with a 21.3% share, followed by the high-end Lumia 920 at 9.3% and the Lumia 620 at 9.1%.

http://bgr.com/2013/09/25/windows-phone-market-share-nokia/