Month Percent 1999-01-31 3.07 1999-02-28 2.74 1999-03-31 2.49 1999-04-30 2.48 1999-05-31 2.31 1999-06-30 2.29 1999-07-31 2.26 1999-08-31 2.25 1999-09-30 2.32 1999-10-31 2.37 1999-11-30 2.38 1999-12-31 2.53 2000-01-31 2.64 2000-02-29 2.73 2000-03-31 2.8 2000-04-30 2.98 2000-05-31 2.85 2000-06-30 2.92 2000-07-31 2.92 2000-08-31 2.94 2000-09-30 3.09 2000-10-31 3.08 2000-11-30 3.08 2000-12-31 3.1 2001-01-31 3.11 2001-02-28 3.06 2001-03-31 2.88 2001-04-30 2.88 2001-05-31 2.68 2001-06-30 2.56 2001-07-31 2.58 2001-08-31 2.56 2001-09-30 2.36 2001-10-31 2.19 2001-11-30 2.01 2001-12-31 1.71 2002-01-31 1.71 2002-02-28 1.72 2002-03-31 1.69 2002-04-30 1.76 2002-05-31 1.77 2002-06-30 1.77 2002-07-31 1.82 2002-08-31 1.87 2002-09-30 1.89 2002-10-31 1.73 2002-11-30 1.86 2002-12-31 1.86 2003-01-31 1.9 2003-02-28 1.89 2003-03-31 1.81 2003-04-30 1.79 2003-05-31 1.78 2003-06-30 1.79 2003-07-31 1.71 2003-08-31 1.61 2003-09-30 1.62 2003-10-31 1.61 2003-11-30 1.63 2003-12-31 1.76 2004-01-31 2.05 2004-02-29 2.16 2004-03-31 2.26 2004-04-30 2.26 2004-05-31 2.35 2004-06-30 2.51 2004-07-31 2.81 2004-08-31 2.87 2004-09-30 3.05 2004-10-31 3.06 2004-11-30 3.02 2004-12-31 3.05 2005-01-31 3.05 2005-02-28 3.06 2005-03-31 3.07 2005-04-30 3.06 2005-05-31 3.07 2005-06-30 3.03 2005-07-31 3.06 2005-08-31 3.01 2005-09-30 2.89 2005-10-31 2.85 2005-11-30 2.87 2005-12-31 2.75 2006-01-31 2.7 2006-02-28 2.74 2006-03-31 2.73 2006-04-30 2.71 2006-05-31 2.69 2006-06-30 2.72 2006-07-31 2.71 2006-08-31 2.74 2006-09-30 2.84 2006-10-31 2.85 2006-11-30 2.87 2006-12-31 2.95 2007-01-31 2.99 2007-02-28 3.13 2007-03-31 3.1 2007-04-30 3.13 2007-05-31 3.14 2007-06-30 3.31 2007-07-31 3.33 2007-08-31 3.46 2007-09-30 3.47 2007-10-31 3.51 2007-11-30 3.48 2007-12-31 3.45 2008-01-31 3.32 2008-02-29 3.29 2008-03-31 3.11 2008-04-30 3.11 2008-05-31 2.97 2008-06-30 3.01 2008-07-31 3.09 2008-08-31 3.1 2008-09-30 3.08 2008-10-31 3.03 2008-11-30 2.57 2008-12-31 1.59 2009-01-31 1.14 2009-02-28 0.94 2009-03-31 0.82 2009-04-30 0.76 2009-05-31 0.73 2009-06-30 0.76 2009-07-31 0.74 2009-08-31 0.71 2009-09-30 0.74 2009-10-31 0.75 2009-11-30 0.72 2009-12-31 0.73 2010-01-31 0.8 2010-02-28 0.74 2010-03-31 0.74 2010-04-30 0.77 2010-05-31 0.76 2010-06-30 0.78 2010-07-31 0.78 2010-08-31 0.77 2010-09-30 0.78 2010-10-31 0.82 2010-11-30 0.8 2010-12-31 0.86 2011-01-31 0.93 2011-02-28 0.86 2011-03-31 0.89 2011-04-30 0.91 2011-05-31 0.89 2011-06-30 0.92 2011-07-31 0.92 2011-08-31 0.91 2011-09-30 0.96 2011-10-31 0.98 2011-11-30 0.99 2011-12-31 0.98 2012-01-31 0.98 2012-02-29 1.03 2012-03-31 1.04 2012-04-30 1.03 2012-05-31 1.05 2012-06-30 1.06 2012-07-31 1.04 2012-08-31 1.04 2012-09-30 1.05 2012-10-31 1.08 2012-11-30 1.07 2012-12-31 1.07 2013-01-31 1.14 2013-02-28 1.08 2013-03-31 1.04 2013-04-30 1.02 2013-05-31 1 2013-06-30 0.96 2013-07-31 0.94 2013-08-31 0.9 2013-09-30 0.91 2013-10-31 0.86 2013-11-30 0.83 2013-12-31 0.82 2014-01-31 0.82 2014-02-28 0.76 2014-03-31 0.75 2014-04-30 0.76 2014-05-31 0.77 2014-06-30 0.79 2014-07-31 0.76 2014-08-31 0.75 2014-09-30 0.74 2014-10-31 0.78 2014-11-30 0.76 2014-12-31 0.75 2015-01-31 0.78 2015-02-28 0.76 2015-03-31 0.76 2015-04-30 0.75 2015-05-31 0.76 2015-06-30 0.77 2015-07-31 0.76 2015-08-31 0.77 2015-09-30 0.76 2015-10-31 0.77 2015-11-30 0.77 2015-12-31 0.78 2016-01-31 0.75 2016-02-29 0.74 2016-03-31 0.74 2016-04-30 0.7 2016-05-31 0.67 2016-06-30 0.68 2016-07-31 0.68 2016-08-31 0.65 2016-09-30 0.62 2016-10-31 0.61 2016-11-30 0.47 2016-12-31 0.41 2017-01-31 0.37 2017-02-28 0.37 2017-03-31 0.37 2017-04-30 0.36 2017-05-31 0.36 2017-06-30 0.36 2017-07-31 0.35 2017-08-31 0.35 2017-09-30 0.35 2017-10-31 0.35 2017-11-30 0.36 2017-12-31 0.46 2018-01-31 0.44 2018-02-28 0.45 2018-03-31 0.45 2018-04-30 0.44 2018-05-31 0.44 2018-06-30 0.44 2018-07-31 0.43 2018-08-31 0.43 2018-09-30 0.49 2018-10-31 0.48 2018-11-30 0.49 2018-12-31 0.51 2019-01-31 0.49 2019-02-28 0.49 2019-03-31 0.5 2019-04-30 0.51 2019-05-31 0.5 2019-06-30 0.49 2019-07-31 0.48 2019-08-31 0.48 2019-09-30 0.48 2019-10-31 0.47 2019-11-30 0.47 2019-12-31 0.47 2020-01-31 0.46 2020-02-29 0.46 2020-03-31 0.45 2020-04-30 0.41 2020-05-31 0.29 2020-06-30 0.26 2020-07-31 0.21 2020-08-31 0.14 2020-09-30 0.13 2020-10-31 0.12 2020-11-30 0.12 2020-12-31 0.12 2021-01-31 0.12 2021-02-28 0.12 2021-03-31 0.11 2021-04-30 0.1 2021-05-31 0.1 2021-06-30 0.1 2021-07-31 0.09 2021-08-31 0.09 2021-09-30 0.09 2021-10-31 0.09 2021-11-30 0.09 2021-12-31 0.09 2022-01-31 0.09 2022-02-28 0.1 2022-03-31 0.12 2022-04-30 0.15 2022-05-31 0.18 2022-06-30 0.21 2022-07-31 0.27 2022-08-31 0.32 2022-09-30 0.43 2022-10-31 0.52 2022-11-30 0.63 2022-12-31 0.83 2023-01-31 0.88 2023-02-28 1.04 2023-03-31 1.12 2023-04-30 1.23 2023-05-31 1.32 2023-06-30 1.45 2023-07-31 1.66 2023-08-31 1.83 2023-09-30 1.95 2023-10-31 1.98 2023-11-30 2.02 2023-12-31 2.02