Month Percent 1999-04-01 8.33 1999-05-01 8.19 1999-06-01 8.20 1999-07-01 8.38 1999-08-01 10.04 1999-09-01 9.06 1999-10-01 8.31 1999-11-01 8.05 1999-12-01 6.92 2000-01-01 5.63 2000-02-01 9.23 2000-03-01 16.52 2000-04-01 7.04 2000-05-01 7.03 2000-06-01 7.51 2000-07-01 8.22 2000-08-01 13.74 2000-09-01 10.18 2000-10-01 8.25 2000-11-01 8.06 2000-12-01 9.18 2001-01-01 9.79 2001-02-01 8.07 2001-03-01 12.23 2001-04-01 7.53 2001-05-01 6.89 2001-06-01 7.33 2001-07-01 7.00 2001-08-01 6.98 2001-09-01 8.02 2001-10-01 8.57 2001-11-01 6.53 2001-12-01 8.01 2002-01-01 6.60 2002-02-01 7.16 2002-03-01 10.01 2002-04-01 6.55 2002-05-01 6.10 2002-06-01 5.40 2002-07-01 5.73 2002-08-01 5.69 2002-09-01 5.71 2002-10-01 5.52 2002-11-01 5.39 2002-12-01 5.65 2003-01-01 6.12 2003-02-01 6.44 2003-03-01 6.38 2003-04-01 4.81 2003-05-01 4.96 2003-06-01 4.90 2003-07-01 4.94 2003-08-01 4.32 2003-09-01 4.64 2003-10-01 4.49 2003-11-01 4.30 2003-12-01 4.40 2004-01-01 4.31 2004-02-01 4.30 2004-03-01 4.40 2004-04-01 4.17 2004-05-01 4.39 2004-06-01 4.11 2004-07-01 4.25 2004-08-01 4.36 2004-09-01 4.85 2004-10-01 4.83 2004-11-01 4.80 2004-12-01 5.44 2005-01-01 5.45 2005-02-01 5.25 2005-03-01 5.25 2005-04-01 4.94 2005-05-01 5.01 2005-06-01 5.60 2005-07-01 3.19 2005-08-01 5.03 2005-09-01 5.04 2005-10-01 5.38 2005-11-01 5.40 2005-12-01 6.20 2006-01-01 7.40 2006-02-01 6.64 2006-03-01 6.64 2006-04-01 5.59 2006-05-01 5.55 2006-06-01 5.84 2006-07-01 6.07 2006-08-01 6.08 2006-09-01 7.07 2006-10-01 6.86 2006-11-01 6.17 2006-12-01 12.37 2007-01-01 7.76 2007-02-01 6.08 2007-03-01 54.32 2007-04-01 9.12 2007-05-01 1.00 2007-06-01 2.87 2007-07-01 0.17 2007-08-01 5.98 2007-09-01 7.00 2007-10-01 6.10 2007-11-01 7.70 2007-12-01 7.07 2008-01-01 7.22 2008-02-01 6.53 2008-03-01 8.77 2008-04-01 6.19 2008-05-01 7.05 2008-06-01 8.30 2008-07-01 8.22 2008-08-01 9.38 2008-09-01 14.70 2008-10-01 18.59 2008-11-01 5.57 2008-12-01 5.29 2009-01-01 1.18 2009-02-01 4.11 2009-03-01 4.98 2009-04-01 3.28 2009-05-01 3.18 2009-06-01 3.24 2009-07-01 3.16 2009-08-01 3.23 2009-09-01 3.39 2009-10-01 2.58 2009-11-01 3.23 2009-12-01 3.51 2010-01-01 2.96 2010-02-01 3.27 2010-03-01 4.90 2010-04-01 3.82 2010-05-01 5.00 2010-06-01 5.58 2010-07-01 5.67 2010-08-01 5.03 2010-09-01 7.04 2010-10-01 7.30 2010-11-01 6.50 2010-12-01 6.66 2011-01-01 6.92 2011-02-01 6.94 2011-03-01 8.99 2011-04-01 6.33 2011-05-01 7.33 2011-06-01 7.39 2011-07-01 7.90 2011-08-01 8.02 2011-09-01 8.28 2011-10-01 8.53 2011-11-01 8.56 2011-12-01 8.83 2012-01-01 9.04 2012-02-01 8.97 2012-03-01 9.02 2012-04-01 8.38 2012-05-01 8.09 2012-06-01 8.21 2012-07-01 8.03 2012-08-01 7.96 2012-09-01 8.03 2012-10-01 8.04 2012-11-01 8.02 2012-12-01 8.31 2013-01-01 7.82 2013-02-01 7.85 2013-03-01 8.30 2013-04-01 7.76 2013-05-01 7.15 2013-06-01 7.19 2013-07-01 9.64 2013-08-01 5.43 2013-09-01 9.64 2013-10-01 8.69 2013-11-01 5.47 2013-12-01 8.80 2014-01-01 8.28 2014-02-01 8.01 2014-03-01 9.70 2014-04-01 8.75 2014-05-01 6.89 2014-06-01 8.72 2014-07-01 8.00 2014-08-01 5.25 2014-09-01 7.99 2014-10-01 7.70 2014-11-01 5.70 2014-12-01 8.88 2015-01-01 5.57 2015-02-01 6.79 2015-03-01 11.00 2015-04-01 7.68 2015-05-01 6.41 2015-06-01 7.06 2015-07-01 7.07 2015-08-01 7.13 2015-09-01 6.86 2015-10-01 6.05 2015-11-01 6.87 2015-12-01 6.97 2016-01-01 6.13 2016-02-01 7.03 2016-03-01 10.05 2016-04-01 5.58 2016-05-01 6.41 2016-06-01 6.38 2016-07-01 5.94 2016-08-01 6.39 2016-09-01 6.45 2016-10-01 6.23 2016-11-01 6.27 2016-12-01 5.77 2017-01-01 6.01 2017-02-01 5.95 2017-03-01 6.04 2017-04-01 6.10 2017-05-01 6.03 2017-06-01 6.10 2017-07-01 6.09 2017-08-01 5.83 2017-09-01 5.98 2017-10-01 5.88 2017-11-01 5.89 2017-12-01 6.04 2018-01-01 5.91 2018-02-01 5.93 2018-03-01 6.14 2018-04-01 5.89 2018-05-01 5.94 2018-06-01 6.25 2018-07-01 6.16 2018-08-01 6.39 2018-09-01 6.22 2018-10-01 6.42