In US, Windows Phone has seen sales share growth from 3.8% to 4.3% Month on Month from December 2014 to January 2015.
In case of UK, Italy, Germany and France also, there has been sales share growth for Windows Phone month on month from December 2014 to January 2015. Overall in case of EU5, the sales share stands at 9.6% in January 2015.
UK- 6.6% to 7.4%
Italy- 12.7% to 13.2%
Germany- 7.4% to 8.9%
France- 11.6% to 13%
Microsoft has recently announced some compelling devices starting with Lumia 535 and has continued this trend with likes of Lumia 435, Lumia 532 at low-end. The very recently announced mid-rangers like Lumia 640 and Lumia 640 XL should also help Windows Phone to capture more sales share in coming months.