The Manufactured Housing Institute’s (MHI) shipments report indicates that 4,035 new HUD-code homes were shipped in March 2011, down 10.7 percent from March 2010.  Decreases were across the board with both single-section and multi-section homes shipments down compared with the same month last year.  Compared with 2010, this year has started off with declines in the first three months.  Industry shipments for the year-to-date stand at 9,696 homes compared with 11,132 homes in the previous year, a net decrease of 12.9 percent.  The seasonally adjusted annual rate (SAAR) of shipments was 50,920 in March, up 19.6 percent from the rate of 42,586 in February 2011.  The SAAR corrects for normal seasonal variations in shipments and projects annual shipments based on the current monthly total.  Total floors shipped in March 2011 were 6,232, down 13.2 percent from the same month in 2010.  The number of plants reporting production in February was 124, and the number of corporations was 45, both down by four compared with the prior month.