591
Microsoft has revealed sales data for the year of 2013, and it seems that over 3 million Xbox One units have sold between the 22nd of November (the launch date of the console) and the end of the year. This is an estimated one month time-spawn, because during the holidays, many retailers were closed for at least a few days.
Considering that one million units sold only on the first day, the numbers are not bad at all. The numbers are also estimated to keep growing, as Microsoft has only launched the Xbox One on 13 markets, and is going to expand these markets this year. No future sales data will be provided by Microsoft until the 23rd of January, but retailers will probably reveal additional numbers during the coming days.
Source: Xbox Wire