Month Percent 1999-01-31 6.47 1999-02-28 6.37 1999-03-31 7.01 1999-04-30 5.88 1999-05-31 5.8 1999-06-30 5.94 1999-07-31 5.78 1999-08-31 5.9 1999-09-30 5.96 1999-10-31 6.16 1999-11-30 6.13 1999-12-31 6.13 2000-01-31 6.22 2000-02-29 6.41 2000-03-31 6.49 2000-04-30 6.54 2000-05-31 6.6 2000-06-30 6.62 2000-07-31 6.58 2000-08-31 6.6 2000-09-30 6.72 2000-10-31 6.6 2000-11-30 6.56 2000-12-31 6.67 2001-01-31 6.61 2001-02-28 6.57 2001-03-31 6.37 2001-04-30 6.32 2001-05-31 6.16 2001-06-30 5.97 2001-07-31 5.88 2001-08-31 5.8 2001-09-30 5.65 2001-10-31 5.39 2001-11-30 5.15 2001-12-31 4.96 2002-01-31 4.89 2002-02-28 4.82 2002-03-31 4.83 2002-04-30 4.77 2002-05-31 4.79 2002-06-30 4.75 2002-07-31 4.75 2002-08-31 4.76 2002-09-30 4.72 2002-10-31 4.65 2002-11-30 4.64 2002-12-31 4.7 2003-01-31 4.66 2003-02-28 4.58 2003-03-31 4.51 2003-04-30 4.41 2003-05-31 4.42 2003-06-30 4.36 2003-07-31 4.24 2003-08-31 4.16 2003-09-30 4.15 2003-10-31 4.17 2003-11-30 4.25 2003-12-31 4.34 2004-01-31 4.27 2004-02-29 4.37 2004-03-31 4.38 2004-04-30 4.48 2004-05-31 4.6 2004-06-30 4.84 2004-07-31 4.98 2004-08-31 5.11 2004-09-30 5.22 2004-10-31 5.2 2004-11-30 5.22 2004-12-31 5.18 2005-01-31 5.12 2005-02-28 5.11 2005-03-31 5.09 2005-04-30 5.08 2005-05-31 5.08 2005-06-30 4.95 2005-07-31 4.92 2005-08-31 4.81 2005-09-30 4.75 2005-10-31 4.74 2005-11-30 4.72 2005-12-31 4.7 2006-01-31 4.71 2006-02-28 4.67 2006-03-31 4.67 2006-04-30 4.6 2006-05-31 4.75 2006-06-30 4.59 2006-07-31 4.77 2006-08-31 4.94 2006-09-30 4.95 2006-10-31 5.04 2006-11-30 5.17 2006-12-31 5.2 2007-01-31 5.26 2007-02-28 5.39 2007-03-31 5.49 2007-04-30 5.42 2007-05-31 5.49 2007-06-30 5.57 2007-07-31 5.73 2007-08-31 5.88 2007-09-30 5.92 2007-10-31 6.02 2007-11-30 6.02 2007-12-31 6.02 2008-01-31 5.82 2008-02-29 5.72 2008-03-31 5.71 2008-04-30 5.65 2008-05-31 5.48 2008-06-30 5.47 2008-07-31 5.53 2008-08-31 5.49 2008-09-30 5.53 2008-10-31 5.54 2008-11-30 4.89 2008-12-31 4.02 2009-01-31 3.37 2009-02-28 3.01 2009-03-31 2.68 2009-04-30 2.65 2009-05-31 2.74 2009-06-30 2.57 2009-07-31 2.55 2009-08-31 2.42 2009-09-30 2.43 2009-10-31 2.35 2009-11-30 2.27 2009-12-31 2.19 2010-01-31 2.15 2010-02-28 2.16 2010-03-31 2.14 2010-04-30 2.09 2010-05-31 1.96 2010-06-30 2 2010-07-31 1.95 2010-08-31 1.62 2010-09-30 1.63 2010-10-31 1.83 2010-11-30 1.97 2010-12-31 2.02 2011-01-31 1.56 2011-02-28 1.55 2011-03-31 1.67 2011-04-30 1.85 2011-05-31 1.84 2011-06-30 2.03 2011-07-31 2.04 2011-08-31 1.96 2011-09-30 1.96 2011-10-31 1.99 2011-11-30 1.93 2011-12-31 1.89 2012-01-31 1.88 2012-02-29 2 2012-03-31 1.97 2012-04-30 2 2012-05-31 2.07 2012-06-30 1.99 2012-07-31 1.97 2012-08-31 1.95 2012-09-30 1.99 2012-10-31 1.91 2012-11-30 1.94 2012-12-31 1.94 2013-01-31 1.69 2013-02-28 1.73 2013-03-31 1.73 2013-04-30 1.68 2013-05-31 1.77 2013-06-30 1.8 2013-07-31 1.79 2013-08-31 1.79 2013-09-30 1.8 2013-10-31 1.84 2013-11-30 1.93 2013-12-31 1.93 2014-01-31 1.94 2014-02-28 1.87 2014-03-31 1.89 2014-04-30 1.87 2014-05-31 1.79 2014-06-30 1.78 2014-07-31 1.71 2014-08-31 1.56 2014-09-30 1.61 2014-10-31 1.61 2014-11-30 1.64 2014-12-31 1.6 2015-01-31 1.5 2015-02-28 1.65 2015-03-31 1.62 2015-04-30 1.62 2015-05-31 1.64 2015-06-30 1.81 2015-07-31 1.7 2015-08-31 1.68 2015-09-30 1.67 2015-10-31 1.67 2015-11-30 1.69 2015-12-31 1.71 2016-01-31 1.63 2016-02-29 1.62 2016-03-31 1.63 2016-04-30 1.63 2016-05-31 1.73 2016-06-30 1.98 2016-07-31 2.03 2016-08-31 1.83 2016-09-30 1.76 2016-10-31 1.72 2016-11-30 1.77 2016-12-31 1.65 2017-01-31 1.57 2017-02-28 1.57 2017-03-31 1.46 2017-04-30 1.43 2017-05-31 1.36 2017-06-30 1.46 2017-07-31 1.45 2017-08-31 1.34 2017-09-30 1.42 2017-10-31 1.42 2017-11-30 1.54 2017-12-31 1.54 2018-01-31 1.39 2018-02-28 1.42 2018-03-31 1.45 2018-04-30 1.39 2018-05-31 1.38 2018-06-30 1.41 2018-07-31 1.39 2018-08-31 1.55 2018-09-30 1.55 2018-10-31 1.52 2018-11-30 1.51 2018-12-31 1.54 2019-01-31 1.51 2019-02-28 2.33 2019-03-31 1.63 2019-04-30 1.66 2019-05-31 1.6 2019-06-30 1.59 2019-07-31 1.57 2019-08-31 1.58 2019-09-30 1.76 2019-10-31 1.63 2019-11-30 1.66 2019-12-31 1.64 2020-01-31 1.7 2020-02-29 0.85 2020-03-31 1.43 2020-04-30 1 2020-05-31 1.25 2020-06-30 1.12 2020-07-31 1.07 2020-08-31 1.14 2020-09-30 1.17 2020-10-31 1.17 2020-11-30 1.2 2020-12-31 1.17 2021-01-31 1.24 2021-02-28 1.21 2021-03-31 1.19 2021-04-30 1.23 2021-05-31 1.31 2021-06-30 1.3 2021-07-31 1.3 2021-08-31 1.32 2021-09-30 1.36 2021-10-31 1.34 2021-11-30 1.39 2021-12-31 1.43 2022-01-31 1.5 2022-02-28 1.7 2022-03-31 1.85 2022-04-30 1.95 2022-05-31 2.15 2022-06-30 2.29 2022-07-31 2.45 2022-08-31 2.82 2022-09-30 3.01 2022-10-31 3.36 2022-11-30 3.87 2022-12-31 4.24 2023-01-31 4.5 2023-02-28 4.9 2023-03-31 5.04 2023-04-30 5.28 2023-05-31 5.48 2023-06-30 5.47 2023-07-31 5.82 2023-08-31 6.02 2023-09-30 6.11 2023-10-31 6.16 2023-11-30 6.08 2023-12-31 6.04