Month Percent 1999-01-31 8.42 1999-02-28 8.31 1999-03-31 8.23 1999-04-30 7.97 1999-05-31 7.88 1999-06-30 7.87 1999-07-31 7.96 1999-08-31 7.84 1999-09-30 7.91 1999-10-31 8.18 1999-11-30 8.28 1999-12-31 8.36 2000-01-31 8.37 2000-02-29 8.5 2000-03-31 8.59 2000-04-30 8.48 2000-05-31 8.45 2000-06-30 8.44 2000-07-31 8.35 2000-08-31 8.38 2000-09-30 8.4 2000-10-31 8.27 2000-11-30 8.15 2000-12-31 8.13 2001-01-31 8.19 2001-02-28 8.07 2001-03-31 7.99 2001-04-30 7.81 2001-05-31 7.66 2001-06-30 7.61 2001-07-31 7.59 2001-08-31 7.47 2001-09-30 7.33 2001-10-31 7.31 2001-11-30 7.11 2001-12-31 6.95 2002-01-31 6.84 2002-02-28 6.74 2002-03-31 6.69 2002-04-30 6.76 2002-05-31 6.69 2002-06-30 6.67 2002-07-31 6.71 2002-08-31 6.39 2002-09-30 6.79 2002-10-31 6.81 2002-11-30 6.57 2002-12-31 6.63 2003-01-31 6.71 2003-02-28 6.63 2003-03-31 6.75 2003-04-30 6.7 2003-05-31 6.63 2003-06-30 6.68 2003-07-31 5.95 2003-08-31 5.86 2003-09-30 5.88 2003-10-31 5.76 2003-11-30 5.96 2003-12-31 6.05 2004-01-31 5.92 2004-02-29 5.94 2004-03-31 6.12 2004-04-30 6.22 2004-05-31 6.28 2004-06-30 6.47 2004-07-31 6.43 2004-08-31 6.47 2004-09-30 6.18 2004-10-31 5.9 2004-11-30 6.45 2004-12-31 6.31 2005-01-31 6.27 2005-02-28 5.22 2005-03-31 5.43 2005-04-30 5.4 2005-05-31 5.25 2005-06-30 5.16 2005-07-31 5.2 2005-08-31 5.11 2005-09-30 5.07 2005-10-31 5.7 2005-11-30 5.8 2005-12-31 5.82 2006-01-31 5.74 2006-02-28 5.71 2006-03-31 5.75 2006-04-30 5.8 2006-05-31 5.65 2006-06-30 5.8 2006-07-31 5.68 2006-08-31 5.97 2006-09-30 5.76 2006-10-31 5.32 2006-11-30 5.52 2006-12-31 6.2 2007-01-31 5.68 2007-02-28 5.69 2007-03-31 5.99 2007-04-30 6.4 2007-05-31 5.7 2007-06-30 6.28 2007-07-31 6.2 2007-08-31 6.86 2007-09-30 7.63 2007-10-31 6.99 2007-11-30 7.16 2007-12-31 7.32 2008-01-31 7.56 2008-02-29 6.35 2008-03-31 6.74 2008-04-30 6.95 2008-05-31 6.76 2008-06-30 6.69 2008-07-31 6.8 2008-08-31 6.96 2008-09-30 6.68 2008-10-31 6.81 2008-11-30 5.61 2008-12-31 4.67 2009-01-31 3.34 2009-02-28 2.56 2009-03-31 2.08 2009-04-30 2.52 2009-05-31 2.36 2009-06-30 1.9 2009-07-31 2.26 2009-08-31 1.94 2009-09-30 1.97 2009-10-31 1.97 2009-11-30 1.89 2009-12-31 2.27 2010-01-31 2.18 2010-02-28 1.84 2010-03-31 1.91 2010-04-30 2.15 2010-05-31 2.2 2010-06-30 2.26 2010-07-31 1.81 2010-08-31 1.94 2010-09-30 2.05 2010-10-31 2.26 2010-11-30 2.01 2010-12-31 2.93 2011-01-31 2.53 2011-02-28 2.66 2011-03-31 2.61 2011-04-30 2.78 2011-05-31 2.81 2011-06-30 3.83 2011-07-31 3.73 2011-08-31 2.75 2011-09-30 2.66 2011-10-31 2.89 2011-11-30 2.47 2011-12-31 3.11 2012-01-31 2.9 2012-02-29 2.78 2012-03-31 2.77 2012-04-30 2.9 2012-05-31 2.86 2012-06-30 2.63 2012-07-31 3.26 2012-08-31 2.73 2012-09-30 2.47 2012-10-31 3.44 2012-11-30 2.7 2012-12-31 2.83 2013-01-31 3.12 2013-02-28 3.05 2013-03-31 2.83 2013-04-30 3.65 2013-05-31 3.14 2013-06-30 2.92 2013-07-31 3.6 2013-08-31 3.14 2013-09-30 3.93 2013-10-31 4.38 2013-11-30 3.29 2013-12-31 3.6 2014-01-31 5.05 2014-02-28 3.2 2014-03-31 2.8 2014-04-30 4.22 2014-05-31 3.39 2014-06-30 3.5 2014-07-31 3.39 2014-08-31 3.29 2014-09-30 3.39 2014-10-31 3.14 2014-11-30 2.89 2014-12-31 2.85 2015-01-31 2.84 2015-02-28 2.63 2015-03-31 2.61 2015-04-30 2.46 2015-05-31 2.43 2015-06-30 2.43 2015-07-31 2.46 2015-08-31 2.78 2015-09-30 2.25 2015-10-31 2.37 2015-11-30 2.38 2015-12-31 2.64 2016-01-31 2.46 2016-02-29 2.63 2016-03-31 2.65 2016-04-30 2.34 2016-05-31 2.23 2016-06-30 2.39 2016-07-31 2.49 2016-08-31 2.14 2016-09-30 1.69 2016-10-31 2.58 2016-11-30 2.34 2016-12-31 2.79 2017-01-31 2.56 2017-02-28 2.57 2017-03-31 2.53 2017-04-30 2.54 2017-05-31 2.38 2017-06-30 2.76 2017-07-31 2.8 2017-08-31 3.34 2017-09-30 3.83 2017-10-31 4.69 2017-11-30 4.87 2017-12-31 4.58 2018-01-31 3.76 2018-02-28 3.59 2018-03-31 3.57 2018-04-30 3.26 2018-05-31 2.78 2018-06-30 2.65 2018-07-31 2.68 2018-08-31 2.29 2018-09-30 3.33 2018-10-31 3.17 2018-11-30 3.53 2018-12-31 4.13 2019-01-31 2.85 2019-02-28 3.1 2019-03-31 2.85 2019-04-30 3.23 2019-05-31 2.87 2019-06-30 2.35 2019-07-31 2.83 2019-08-31 3.47 2019-09-30 3.74 2019-10-31 3.64 2019-11-30 3.45 2019-12-31 3.19 2020-01-31 3.01 2020-02-29 3.08 2020-03-31 3.24 2020-04-30 3.57 2020-05-31 3.18 2020-06-30 2.85 2020-07-31 3.3 2020-08-31 3.71 2020-09-30 4.69 2020-10-31 4.49 2020-11-30 4.44 2020-12-31 4.7 2021-01-31 4.93 2021-02-28 4.93 2021-03-31 3.8 2021-04-30 4.36 2021-05-31 3.56 2021-06-30 2.58 2021-07-31 3.69 2021-08-31 2.79 2021-09-30 2.76 2021-10-31 2.34 2021-11-30 2.02 2021-12-31 2.47 2022-01-31 2.67 2022-02-28 3.94 2022-03-31 2.28 2022-04-30 2.32 2022-05-31 2.89 2022-06-30 2.74 2022-07-31 2.95 2022-08-31 3.16 2022-09-30 2.8 2022-10-31 2.68 2022-11-30 3.11 2022-12-31 3.53 2023-01-31 4.12 2023-02-28 4.26 2023-03-31 3.43 2023-04-30 4.17 2023-05-31 4.21 2023-06-30 4.93 2023-07-31 4.79 2023-08-31 5.58 2023-09-30 6.5 2023-10-31 7.6 2023-11-30 7.48 2023-12-31 7.73