Month Net Percent, Seasonally Adjusted 2010-12-01 -12.50 2011-01-01 -3.20 2011-02-01 -7.90 2011-03-01 -15.20 2011-04-01 -9.90 2011-05-01 -18.80 2011-06-01 -9.40 2011-07-01 -2.40 2011-08-01 -8.80 2011-09-01 -7.90 2011-10-01 -10.20 2011-11-01 -13.60 2011-12-01 -21.80 2012-01-01 -13 2012-02-01 -11.70 2012-03-01 -9.90 2012-04-01 -6.50 2012-05-01 -12.60 2012-06-01 -12.40 2012-07-01 -11.20 2012-08-01 -8.40 2012-09-01 -16.30 2012-10-01 -19.50 2012-11-01 -8.70 2012-12-01 -11.60 2013-01-01 -0.66 2013-02-01 -3.94 2013-03-01 -3.22 2013-04-01 -2.39 2013-05-01 -3.59 2013-06-01 -2.88 2013-07-01 -4.11 2013-08-01 -1.59 2013-09-01 -1.61 2013-10-01 -1.95 2013-11-01 -0.03