From BMW Group PressClub USA:

MINI Brand Sales

MINI USA reported sales of 5,801 automobiles in May.  The May 2011 sales are an increase of 37.0% over the 4,233 sold in May 2010.

Year-to-date, MINI sales in the U.S. are up 46.3% on volume of 24,588 compared to 16,804 in the first five months of 2010.

May 2011 May 2010 change year-to-date 2011 year-to-date 2010 change
5,801 4,233 37.0% 24,588 16,804 46.3%

See MINI sales in the USA by month.