T-Mobile accounts for 45% of US Nokia sales in Q4 2013 

Kantar, the popular data consultancy company, has released a series of Tweets with highlights of its upcoming Q4 2013 annual report in regards to Nokia's performance.
The most notable tidbit relates to T-Mobile, which has been revealed as the the best US carrier at selling Nokia devices, accounting for some 45% of all sales in the states during Q4 of last year.

Of those 45%, 56% were low-end Lumia phones, most notably the 521. This leaves right around 32% of sales being premium handsets and flagships like the Lumia 925.
According to other Kantar data, only 9 million US residents would choose a Nokia device over others, while 39 million more would at least consider one. This is in stark contrast to China where of their over 1 billion mobile users, some 57 million prefer a Nokia handset, while 123 million would consider using one.