Month Percent 2004-01-31 3.9 2004-02-29 3.92 2004-03-31 3.98 2004-04-30 4.04 2004-05-31 4.03 2004-06-30 4.28 2004-07-31 4.31 2004-08-31 4.38 2004-09-30 4.48 2004-10-31 4.5 2004-11-30 4.55 2004-12-31 4.53 2005-01-31 4.59 2005-02-28 4.56 2005-03-31 4.59 2005-04-30 4.57 2005-05-31 4.58 2005-06-30 4.56 2005-07-31 4.53 2005-08-31 4.51 2005-09-30 4.45 2005-10-31 4.48 2005-11-30 4.45 2005-12-31 4.43 2006-01-31 4.46 2006-02-28 4.42 2006-03-31 4.43 2006-04-30 4.52 2006-05-31 4.48 2006-06-30 4.42 2006-07-31 4.44 2006-08-31 4.49 2006-09-30 4.61 2006-10-31 4.59 2006-11-30 4.72 2006-12-31 4.74 2007-01-31 4.82 2007-02-28 4.88 2007-03-31 4.95 2007-04-30 5.3 2007-05-31 5.03 2007-06-30 5.32 2007-07-31 5.21 2007-08-31 5.35 2007-09-30 5.56 2007-10-31 5.55 2007-11-30 5.54 2007-12-31 5.62 2008-01-31 5.7 2008-02-29 5.51 2008-03-31 5.51 2008-04-30 5.59 2008-05-31 5.53 2008-06-30 5.62 2008-07-31 5.59 2008-08-31 5.79 2008-09-30 5.75 2008-10-31 5.69 2008-11-30 5.61 2008-12-31 5.26 2009-01-31 5.03 2009-02-28 4.85 2009-03-31 4.64 2009-04-30 4.47 2009-05-31 4.11 2009-06-30 4.03 2009-07-31 3.78 2009-08-31 3.59 2009-09-30 3.49 2009-10-31 3.44 2009-11-30 3.33 2009-12-31 3.23 2010-01-31 3.27 2010-02-28 3.28 2010-03-31 3.28 2010-04-30 3.3 2010-05-31 3.24 2010-06-30 3.28 2010-07-31 3.19 2010-08-31 3.2 2010-09-30 3.16 2010-10-31 3.15 2010-11-30 3.17 2010-12-31 3.15 2011-01-31 3.25 2011-02-28 3.25 2011-03-31 3.25 2011-04-30 3.26 2011-05-31 3.29 2011-06-30 3.33 2011-07-31 3.32 2011-08-31 3.32 2011-09-30 3.31 2011-10-31 3.32 2011-11-30 3.36 2011-12-31 3.35 2012-01-31 3.3 2012-02-29 3.27 2012-03-31 3.33 2012-04-30 3.33 2012-05-31 3.31 2012-06-30 3.32 2012-07-31 3.3 2012-08-31 3.32 2012-09-30 3.31 2012-10-31 3.31 2012-11-30 3.33 2012-12-31 3.31 2013-01-31 3.21 2013-02-28 3.19 2013-03-31 3.22 2013-04-30 3.09 2013-05-31 3.04 2013-06-30 3 2013-07-31 3.05 2013-08-31 2.88 2013-09-30 2.96 2013-10-31 2.81 2013-11-30 2.9 2013-12-31 2.7 2014-01-31 2.88 2014-02-28 2.61 2014-03-31 2.67 2014-04-30 2.51 2014-05-31 2.54 2014-06-30 2.34 2014-07-31 2.36 2014-08-31 2.24 2014-09-30 2.17 2014-10-31 2.16 2014-11-30 2.13 2014-12-31 2.03 2015-01-31 2.02 2015-02-28 2 2015-03-31 1.96 2015-04-30 1.88 2015-05-31 2.15 2015-06-30 1.92 2015-07-31 2.34 2015-08-31 1.78 2015-09-30 1.95 2015-10-31 1.84 2015-11-30 1.89 2015-12-31 1.76 2016-01-31 1.74 2016-02-29 1.74 2016-03-31 1.72 2016-04-30 1.69 2016-05-31 1.66 2016-06-30 1.64 2016-07-31 1.6 2016-08-31 1.57 2016-09-30 1.54 2016-10-31 1.5 2016-11-30 1.46 2016-12-31 1.42 2017-01-31 1.39 2017-02-28 1.36 2017-03-31 1.33 2017-04-30 1.3 2017-05-31 1.27 2017-06-30 1.24 2017-07-31 1.21 2017-08-31 1.18 2017-09-30 1.18 2017-10-31 1.17 2017-11-30 1.15 2017-12-31 1.16 2018-01-31 1.16 2018-02-28 1.15 2018-03-31 1.15 2018-04-30 1.14 2018-05-31 1.14 2018-06-30 1.14 2018-07-31 1.23 2018-08-31 1.23 2018-09-30 1.24 2018-10-31 1.24 2018-11-30 1.24 2018-12-31 1.25 2019-01-31 1.25 2019-02-28 1.26 2019-03-31 1.27 2019-04-30 1.29 2019-05-31 1.3 2019-06-30 1.31 2019-07-31 1.32 2019-08-31 1.32 2019-09-30 1.32 2019-10-31 1.32 2019-11-30 1.31 2019-12-31 1.31 2020-01-31 1.29 2020-02-29 1.28 2020-03-31 1.28 2020-04-30 1.25 2020-05-31 1.24 2020-06-30 1.22 2020-07-31 1.2 2020-08-31 1.18 2020-09-30 1.15 2020-10-31 1.12 2020-11-30 1.1 2020-12-31 1.07 2021-01-31 1.04 2021-02-28 1.01 2021-03-31 0.98 2021-04-30 0.93 2021-05-31 0.9 2021-06-30 0.83 2021-07-31 0.79 2021-08-31 0.76 2021-09-30 0.75 2021-10-31 0.74 2021-11-30 0.72 2021-12-31 0.71 2022-01-31 0.77 2022-02-28 0.77 2022-03-31 0.77 2022-04-30 0.79 2022-05-31 0.83 2022-06-30 0.88 2022-07-31 0.95 2022-08-31 1.03 2022-09-30 1.16 2022-10-31 1.48 2022-11-30 1.79 2022-12-31 2.11 2023-01-31 2.34 2023-02-28 2.56 2023-03-31 2.74 2023-04-30 2.95 2023-05-31 3.12 2023-06-30 3.28 2023-07-31 3.47 2023-08-31 3.71 2023-09-30 3.9 2023-10-31 4.09 2023-11-30 4.23 2023-12-31 4.35