Month Percent 1999-01-31 6.31 1999-02-28 5.95 1999-03-31 5.69 1999-04-30 5.46 1999-05-31 5.36 1999-06-30 5.11 1999-07-31 5.05 1999-08-31 5.02 1999-09-30 4.99 1999-10-31 4.2 1999-11-30 5.21 1999-12-31 5.25 2000-01-31 5.41 2000-02-29 5.64 2000-03-31 5.71 2000-04-30 5.82 2000-05-31 5.91 2000-06-30 5.99 2000-07-31 6.06 2000-08-31 6.07 2000-09-30 6.07 2000-10-31 6.02 2000-11-30 6 2000-12-31 5.91 2001-01-31 5.85 2001-02-28 5.79 2001-03-31 5.69 2001-04-30 5.58 2001-05-31 5.47 2001-06-30 5.19 2001-07-31 5.21 2001-08-31 5.08 2001-09-30 4.93 2001-10-31 4.68 2001-11-30 4.28 2001-12-31 4.14 2002-01-31 4.11 2002-02-28 4.06 2002-03-31 4.01 2002-04-30 4.03 2002-05-31 4.05 2002-06-30 4.02 2002-07-31 4.01 2002-08-31 4.01 2002-09-30 3.96 2002-10-31 3.97 2002-11-30 3.91 2002-12-31 3.93 2003-01-31 3.92 2003-02-28 3.83 2003-03-31 3.75 2003-04-30 3.71 2003-05-31 3.63 2003-06-30 3.56 2003-07-31 3.44 2003-08-31 3.38 2003-09-30 3.43 2003-10-31 3.4 2003-11-30 3.51 2003-12-31 3.55 2004-01-31 3.78 2004-02-29 3.86 2004-03-31 3.98 2004-04-30 3.98 2004-05-31 4.15 2004-06-30 4.28 2004-07-31 4.44 2004-08-31 4.63 2004-09-30 4.67 2004-10-31 4.74 2004-11-30 4.75 2004-12-31 4.7 2005-01-31 4.72 2005-02-28 4.72 2005-03-31 4.73 2005-04-30 4.77 2005-05-31 4.78 2005-06-30 4.77 2005-07-31 4.73 2005-08-31 4.64 2005-09-30 4.56 2005-10-31 4.54 2005-11-30 4.54 2005-12-31 4.53 2006-01-31 4.52 2006-02-28 4.5 2006-03-31 4.48 2006-04-30 4.49 2006-05-31 4.57 2006-06-30 4.58 2006-07-31 4.59 2006-08-31 4.66 2006-09-30 5.01 2006-10-31 4.77 2006-11-30 4.88 2006-12-31 4.95 2007-01-31 4.97 2007-02-28 5.08 2007-03-31 5.18 2007-04-30 5.25 2007-05-31 5.34 2007-06-30 5.42 2007-07-31 5.57 2007-08-31 5.69 2007-09-30 5.81 2007-10-31 5.78 2007-11-30 5.79 2007-12-31 5.85 2008-01-31 5.76 2008-02-29 5.56 2008-03-31 5.52 2008-04-30 5.51 2008-05-31 5.49 2008-06-30 5.53 2008-07-31 5.61 2008-08-31 5.86 2008-09-30 6.25 2008-10-31 6.01 2008-11-30 5.05 2008-12-31 4.09 2009-01-31 3.56 2009-02-28 3.05 2009-03-31 2.63 2009-04-30 2.42 2009-05-31 2.27 2009-06-30 2.16 2009-07-31 2.05 2009-08-31 1.98 2009-09-30 1.92 2009-10-31 1.07 2009-11-30 1.01 2009-12-31 1 2010-01-31 1.4 2010-02-28 1.42 2010-03-31 1.51 2010-04-30 1.53 2010-05-31 1.42 2010-06-30 1.3 2010-07-31 1.25 2010-08-31 1.27 2010-09-30 1.28 2010-10-31 1.27 2010-11-30 1.28 2010-12-31 1.29 2011-01-31 1.31 2011-02-28 1.34 2011-03-31 1.41 2011-04-30 1.45 2011-05-31 1.44 2011-06-30 1.44 2011-07-31 1.43 2011-08-31 1.44 2011-09-30 1.45 2011-10-31 1.47 2011-11-30 1.5 2011-12-31 1.49 2012-01-31 1.59 2012-02-29 1.66 2012-03-31 1.71 2012-04-30 1.75 2012-05-31 1.75 2012-06-30 1.69 2012-07-31 1.73 2012-08-31 1.72 2012-09-30 1.72 2012-10-31 1.71 2012-11-30 1.7 2012-12-31 1.67 2013-01-31 1.6 2013-02-28 1.52 2013-03-31 1.44 2013-04-30 1.35 2013-05-31 1.24 2013-06-30 1.15 2013-07-31 1.04 2013-08-31 1 2013-09-30 0.97 2013-10-31 0.94 2013-11-30 0.9 2013-12-31 0.89 2014-01-31 0.89 2014-02-28 0.88 2014-03-31 0.89 2014-04-30 0.84 2014-05-31 0.82 2014-06-30 0.81 2014-07-31 0.8 2014-08-31 0.81 2014-09-30 0.83 2014-10-31 0.83 2014-11-30 0.83 2014-12-31 0.84 2015-01-31 0.83 2015-02-28 0.84 2015-03-31 0.85 2015-04-30 0.84 2015-05-31 0.84 2015-06-30 0.84 2015-07-31 0.83 2015-08-31 0.83 2015-09-30 0.84 2015-10-31 0.84 2015-11-30 0.83 2015-12-31 0.82 2016-01-31 0.85 2016-02-29 0.84 2016-03-31 0.86 2016-04-30 0.87 2016-05-31 0.86 2016-06-30 0.87 2016-07-31 0.86 2016-08-31 0.81 2016-09-30 0.8 2016-10-31 0.79 2016-11-30 0.76 2016-12-31 0.75 2017-01-31 0.74 2017-02-28 0.72 2017-03-31 0.73 2017-04-30 0.73 2017-05-31 0.71 2017-06-30 0.69 2017-07-31 0.65 2017-08-31 0.61 2017-09-30 0.59 2017-10-31 0.58 2017-11-30 0.62 2017-12-31 0.64 2018-01-31 0.65 2018-02-28 0.67 2018-03-31 0.71 2018-04-30 0.75 2018-05-31 0.77 2018-06-30 0.77 2018-07-31 0.78 2018-08-31 0.85 2018-09-30 0.85 2018-10-31 0.88 2018-11-30 0.89 2018-12-31 0.92 2019-01-31 0.94 2019-02-28 0.96 2019-03-31 0.98 2019-04-30 1.02 2019-05-31 1.04 2019-06-30 1.01 2019-07-31 1.01 2019-08-31 1.03 2019-09-30 0.98 2019-10-31 1.01 2019-11-30 1.01 2019-12-31 1.01 2020-01-31 0.99 2020-02-29 0.98 2020-03-31 0.9 2020-04-30 0.8 2020-05-31 0.77 2020-06-30 0.71 2020-07-31 0.59 2020-08-31 0.5 2020-09-30 0.45 2020-10-31 0.41 2020-11-30 0.35 2020-12-31 0.29 2021-01-31 0.24 2021-02-28 0.19 2021-03-31 0.16 2021-04-30 0.14 2021-05-31 0.13 2021-06-30 0.12 2021-07-31 0.11 2021-08-31 0.11 2021-09-30 0.1 2021-10-31 0.11 2021-11-30 0.12 2021-12-31 0.13 2022-01-31 0.16 2022-02-28 0.25 2022-03-31 0.33 2022-04-30 0.53 2022-05-31 0.71 2022-06-30 0.84 2022-07-31 1.04 2022-08-31 1.31 2022-09-30 1.5 2022-10-31 1.86 2022-11-30 2.33 2022-12-31 2.54 2023-01-31 2.83 2023-02-28 3.07 2023-03-31 3.29 2023-04-30 3.48 2023-05-31 3.65 2023-06-30 3.86 2023-07-31 4.13 2023-08-31 4.33 2023-09-30 4.46 2023-10-31 4.58 2023-11-30 4.53 2023-12-31 4.54