Month Percent 1999-01-31 5.44 1999-02-28 5.04 1999-03-31 4.84 1999-04-30 4.66 1999-05-31 4.64 1999-06-30 4.41 1999-07-31 4.35 1999-08-31 4.32 1999-09-30 4.49 1999-10-31 4.68 1999-11-30 4.8 1999-12-31 4.75 2000-01-31 4.98 2000-02-29 5.52 2000-03-31 5.43 2000-04-30 5.39 2000-05-31 5.45 2000-06-30 5.32 2000-07-31 5.37 2000-08-31 5.23 2000-09-30 5.38 2000-10-31 5.23 2000-11-30 5.27 2000-12-31 5.18 2001-01-31 5.37 2001-02-28 5.41 2001-03-31 5.15 2001-04-30 4.99 2001-05-31 4.97 2001-06-30 4.72 2001-07-31 4.78 2001-08-31 4.69 2001-09-30 4.53 2001-10-31 4.23 2001-11-30 3.75 2001-12-31 3.73 2002-01-31 3.6 2002-02-28 3.63 2002-03-31 3.59 2002-04-30 3.52 2002-05-31 3.5 2002-06-30 3.35 2002-07-31 3.49 2002-08-31 3.6 2002-09-30 3.52 2002-10-31 3.51 2002-11-30 3.39 2002-12-31 3.51 2003-01-31 3.42 2003-02-28 3.32 2003-03-31 3.29 2003-04-30 3.26 2003-05-31 3.27 2003-06-30 3.29 2003-07-31 3.11 2003-08-31 3.13 2003-09-30 3.15 2003-10-31 3.19 2003-11-30 3.32 2003-12-31 3.42 2004-01-31 3.27 2004-02-29 3.5 2004-03-31 3.58 2004-04-30 3.72 2004-05-31 4.04 2004-06-30 4.35 2004-07-31 4.43 2004-08-31 4.56 2004-09-30 4.63 2004-10-31 4.67 2004-11-30 4.64 2004-12-31 4.63 2005-01-31 4.69 2005-02-28 4.7 2005-03-31 4.58 2005-04-30 4.62 2005-05-31 4.65 2005-06-30 4.73 2005-07-31 4.67 2005-08-31 4.47 2005-09-30 4.47 2005-10-31 4.46 2005-11-30 4.44 2005-12-31 4.47 2006-01-31 4.45 2006-02-28 4.43 2006-03-31 4.42 2006-04-30 4.33 2006-05-31 4.35 2006-06-30 4.45 2006-07-31 4.39 2006-08-31 4.62 2006-09-30 4.68 2006-10-31 4.62 2006-11-30 4.73 2006-12-31 5.02 2007-01-31 5.06 2007-02-28 5.14 2007-03-31 5.28 2007-04-30 5.2 2007-05-31 5.35 2007-06-30 5.56 2007-07-31 5.56 2007-08-31 5.72 2007-09-30 5.9 2007-10-31 5.97 2007-11-30 5.97 2007-12-31 5.97 2008-01-31 5.7 2008-02-29 5.49 2008-03-31 5.48 2008-04-30 5.32 2008-05-31 4.91 2008-06-30 4.98 2008-07-31 5.02 2008-08-31 4.99 2008-09-30 4.93 2008-10-31 4.67 2008-11-30 3.73 2008-12-31 2.81 2009-01-31 2.11 2009-02-28 1.62 2009-03-31 1.2 2009-04-30 0.99 2009-05-31 0.92 2009-06-30 0.82 2009-07-31 0.9 2009-08-31 0.85 2009-09-30 0.82 2009-10-31 0.94 2009-11-30 0.95 2009-12-31 0.88 2010-01-31 1.21 2010-02-28 1.2 2010-03-31 1.26 2010-04-30 1.26 2010-05-31 1.25 2010-06-30 1.26 2010-07-31 1.26 2010-08-31 1.05 2010-09-30 1.03 2010-10-31 1 2010-11-30 0.82 2010-12-31 0.87 2011-01-31 0.85 2011-02-28 0.87 2011-03-31 0.85 2011-04-30 0.84 2011-05-31 0.82 2011-06-30 0.82 2011-07-31 0.84 2011-08-31 0.85 2011-09-30 0.87 2011-10-31 0.85 2011-11-30 0.92 2011-12-31 0.89 2012-01-31 1 2012-02-29 0.9 2012-03-31 0.87 2012-04-30 0.89 2012-05-31 0.8 2012-06-30 0.81 2012-07-31 0.79 2012-08-31 0.86 2012-09-30 0.88 2012-10-31 0.85 2012-11-30 0.82 2012-12-31 0.79 2013-01-31 0.77 2013-02-28 0.75 2013-03-31 0.74 2013-04-30 0.74 2013-05-31 0.74 2013-06-30 0.72 2013-07-31 0.7 2013-08-31 0.71 2013-09-30 0.73 2013-10-31 0.71 2013-11-30 0.71 2013-12-31 0.69 2014-01-31 0.7 2014-02-28 0.72 2014-03-31 0.71 2014-04-30 0.65 2014-05-31 0.56 2014-06-30 0.59 2014-07-31 0.56 2014-08-31 0.56 2014-09-30 0.52 2014-10-31 0.51 2014-11-30 0.49 2014-12-31 0.52 2015-01-31 0.56 2015-02-28 0.51 2015-03-31 0.52 2015-04-30 0.53 2015-05-31 0.56 2015-06-30 0.57 2015-07-31 0.58 2015-08-31 0.59 2015-09-30 0.58 2015-10-31 0.51 2015-11-30 0.53 2015-12-31 0.57 2016-01-31 0.53 2016-02-29 0.53 2016-03-31 0.42 2016-04-30 0.46 2016-05-31 0.4 2016-06-30 0.43 2016-07-31 0.39 2016-08-31 0.28 2016-09-30 0.28 2016-10-31 0.25 2016-11-30 0.26 2016-12-31 0.22 2017-01-31 0.23 2017-02-28 0.23 2017-03-31 0.2 2017-04-30 0.19 2017-05-31 0.17 2017-06-30 0.17 2017-07-31 0.19 2017-08-31 0.17 2017-09-30 0.18 2017-10-31 0.17 2017-11-30 0.34 2017-12-31 0.38 2018-01-31 0.26 2018-02-28 0.27 2018-03-31 0.27 2018-04-30 0.25 2018-05-31 0.26 2018-06-30 0.27 2018-07-31 0.26 2018-08-31 0.4 2018-09-30 0.43 2018-10-31 0.41 2018-11-30 0.45 2018-12-31 0.45 2019-01-31 0.45 2019-02-28 0.47 2019-03-31 0.46 2019-04-30 0.45 2019-05-31 0.47 2019-06-30 0.47 2019-07-31 0.45 2019-08-31 0.48 2019-09-30 0.49 2019-10-31 0.47 2019-11-30 0.47 2019-12-31 0.46 2020-01-31 0.45 2020-02-29 0.47 2020-03-31 0.26 2020-04-30 0.16 2020-05-31 0.16 2020-06-30 0.12 2020-07-31 0.1 2020-08-31 0.09 2020-09-30 0.08 2020-10-31 0.08 2020-11-30 0.08 2020-12-31 0.08 2021-01-31 0.07 2021-02-28 0.07 2021-03-31 0.08 2021-04-30 0.07 2021-05-31 0.07 2021-06-30 0.07 2021-07-31 0.07 2021-08-31 0.07 2021-09-30 0.04 2021-10-31 0.04 2021-11-30 0.04 2021-12-31 0.06 2022-01-31 0.07 2022-02-28 0.17 2022-03-31 0.24 2022-04-30 0.32 2022-05-31 0.44 2022-06-30 0.56 2022-07-31 0.64 2022-08-31 0.92 2022-09-30 1.1 2022-10-31 1.43 2022-11-30 1.94 2022-12-31 2.12 2023-01-31 2.3 2023-02-28 2.56 2023-03-31 2.72 2023-04-30 2.88 2023-05-31 3.12 2023-06-30 3.28 2023-07-31 3.62 2023-08-31 3.82 2023-09-30 3.92 2023-10-31 3.99 2023-11-30 4.01 2023-12-31 3.95