From BMW Group PressClub USA:

The MINI brand also continued on its growth track in January and, at 14,126 units, sold 15.8% more vehicles year-on-year (12,202). The main growth driver was the new MINI Countryman, with 3,505 deliveries.

January 2011 January 2010 change year-to-date 2011 year-to-date 2010 change
14,126 12,202 15.8% 14,126 12,202 15.8%

See all MINI sales worldwide by month.