From BMW Group PressClub USA:

Both the BMW and MINI brands improved performance with BMW reporting a sales increase of 16.3 percent to 15,100 units and MINI a 1.6 percent increase to 2,871 vehicles.

February 2010 February 2009 change year-to-date 2010 year-to-date 2009 change
2,871 2,826 1.6% 5,118 4,908 4.3%

See MINI sales in the USA by month.