Month Percent 1999-01-31 8.38 1999-02-28 7.87 1999-03-31 7.71 1999-04-30 7.73 1999-05-31 7.57 1999-06-30 7.39 1999-07-31 7.48 1999-08-31 7.36 1999-09-30 7.6 1999-10-31 7.61 1999-11-30 7.63 1999-12-31 7.65 2000-01-31 7.83 2000-02-29 8.29 2000-03-31 8.3 2000-04-30 8.46 2000-05-31 8.49 2000-06-30 8.39 2000-07-31 8.42 2000-08-31 8.4 2000-09-30 8.3 2000-10-31 8.28 2000-11-30 8.11 2000-12-31 8.21 2001-01-31 8.19 2001-02-28 8.19 2001-03-31 7.93 2001-04-30 7.79 2001-05-31 7.65 2001-06-30 7.64 2001-07-31 7.61 2001-08-31 7.39 2001-09-30 7.22 2001-10-31 6.94 2001-11-30 6.48 2001-12-31 6.38 2002-01-31 6.44 2002-02-28 6.43 2002-03-31 6.51 2002-04-30 6.5 2002-05-31 6.45 2002-06-30 6.44 2002-07-31 6.5 2002-08-31 6.48 2002-09-30 6.44 2002-10-31 6.71 2002-11-30 6.78 2002-12-31 6.78 2003-01-31 6.07 2003-02-28 6.11 2003-03-31 6.32 2003-04-30 6.12 2003-05-31 6.21 2003-06-30 6.13 2003-07-31 5.76 2003-08-31 5.66 2003-09-30 5.77 2003-10-31 5.68 2003-11-30 5.8 2003-12-31 6.06 2004-01-31 6.3 2004-02-29 6.21 2004-03-31 6.53 2004-04-30 6.43 2004-05-31 6.57 2004-06-30 6.6 2004-07-31 6.59 2004-08-31 6.68 2004-09-30 6.89 2004-10-31 6.9 2004-11-30 6.89 2004-12-31 6.99 2005-01-31 6.89 2005-02-28 6.83 2005-03-31 6.93 2005-04-30 6.8 2005-05-31 6.77 2005-06-30 6.84 2005-07-31 6.75 2005-08-31 6.58 2005-09-30 6.71 2005-10-31 6.5 2005-11-30 6.51 2005-12-31 6.67 2006-01-31 6.54 2006-02-28 6.49 2006-03-31 6.66 2006-04-30 6.53 2006-05-31 6.65 2006-06-30 6.77 2006-07-31 6.78 2006-08-31 7 2006-09-30 7.11 2006-10-31 6.75 2006-11-30 6.9 2006-12-31 7.07 2007-01-31 7.04 2007-02-28 7.22 2007-03-31 7.22 2007-04-30 7.04 2007-05-31 7.18 2007-06-30 7.38 2007-07-31 7.36 2007-08-31 7.29 2007-09-30 7.44 2007-10-31 7.2 2007-11-30 7.3 2007-12-31 7.28 2008-01-31 7.4 2008-02-29 7.17 2008-03-31 7.1 2008-04-30 6.97 2008-05-31 6.91 2008-06-30 6.98 2008-07-31 7 2008-08-31 6.92 2008-09-30 6.94 2008-10-31 6.66 2008-11-30 5.74 2008-12-31 4.89 2009-01-31 4.39 2009-02-28 3.81 2009-03-31 3.24 2009-04-30 3.15 2009-05-31 3.17 2009-06-30 3.15 2009-07-31 3.18 2009-08-31 3.18 2009-09-30 3.18 2009-10-31 3.07 2009-11-30 3.1 2009-12-31 3.13 2010-01-31 3.09 2010-02-28 3.03 2010-03-31 2.98 2010-04-30 3.03 2010-05-31 3.09 2010-06-30 3.11 2010-07-31 3.05 2010-08-31 3.12 2010-09-30 3.03 2010-10-31 2.93 2010-11-30 3.07 2010-12-31 3.05 2011-01-31 3.16 2011-02-28 3.54 2011-03-31 3.39 2011-04-30 3.35 2011-05-31 3.43 2011-06-30 3.25 2011-07-31 3.36 2011-08-31 3.46 2011-09-30 3.47 2011-10-31 4.02 2011-11-30 3.7 2011-12-31 3.65 2012-01-31 3.56 2012-02-29 3.78 2012-03-31 3.8 2012-04-30 3.81 2012-05-31 3.75 2012-06-30 3.76 2012-07-31 3.83 2012-08-31 3.85 2012-09-30 3.65 2012-10-31 3.71 2012-11-30 3.76 2012-12-31 3.77 2013-01-31 3.65 2013-02-28 3.52 2013-03-31 3.61 2013-04-30 3.66 2013-05-31 3.56 2013-06-30 3.37 2013-07-31 3.48 2013-08-31 3.37 2013-09-30 3.44 2013-10-31 3.46 2013-11-30 3.52 2013-12-31 3.54 2014-01-31 3.56 2014-02-28 3.46 2014-03-31 3.51 2014-04-30 3.24 2014-05-31 3.51 2014-06-30 3.47 2014-07-31 3.47 2014-08-31 3.58 2014-09-30 3.26 2014-10-31 3.4 2014-11-30 3.39 2014-12-31 3.23 2015-01-31 3.49 2015-02-28 3.4 2015-03-31 3.32 2015-04-30 3.4 2015-05-31 3.48 2015-06-30 3.43 2015-07-31 3.37 2015-08-31 3.46 2015-09-30 3.58 2015-10-31 3.33 2015-11-30 3.38 2015-12-31 3.38 2016-01-31 3.31 2016-02-29 3.38 2016-03-31 3.63 2016-04-30 3.59 2016-05-31 3.63 2016-06-30 3.59 2016-07-31 3.69 2016-08-31 3.61 2016-09-30 3.62 2016-10-31 3.56 2016-11-30 3.5 2016-12-31 3.51 2017-01-31 3.3 2017-02-28 3.42 2017-03-31 3.54 2017-04-30 3.44 2017-05-31 3.48 2017-06-30 3.49 2017-07-31 3.3 2017-08-31 3.27 2017-09-30 3.21 2017-10-31 3.27 2017-11-30 3.47 2017-12-31 3.36 2018-01-31 3.74 2018-02-28 3.77 2018-03-31 3.72 2018-04-30 3.63 2018-05-31 3.56 2018-06-30 3.66 2018-07-31 3.55 2018-08-31 3.82 2018-09-30 3.97 2018-10-31 3.84 2018-11-30 3.75 2018-12-31 3.83 2019-01-31 3.88 2019-02-28 3.88 2019-03-31 3.89 2019-04-30 3.88 2019-05-31 3.97 2019-06-30 3.84 2019-07-31 3.88 2019-08-31 3.88 2019-09-30 3.93 2019-10-31 3.87 2019-11-30 3.98 2019-12-31 4.09 2020-01-31 4.04 2020-02-29 4.21 2020-03-31 3.89 2020-04-30 3.37 2020-05-31 3.28 2020-06-30 3.33 2020-07-31 3.31 2020-08-31 3.31 2020-09-30 3.51 2020-10-31 3.25 2020-11-30 3.22 2020-12-31 3.29 2021-01-31 3.18 2021-02-28 3.18 2021-03-31 3.18 2021-04-30 2.91 2021-05-31 3.06 2021-06-30 3.09 2021-07-31 3.02 2021-08-31 2.81 2021-09-30 3.09 2021-10-31 2.82 2021-11-30 3.19 2021-12-31 3.36 2022-01-31 3.22 2022-02-28 3.36 2022-03-31 3.58 2022-04-30 3.78 2022-05-31 4.2 2022-06-30 4.17 2022-07-31 4.59 2022-08-31 4.6 2022-09-30 4.83 2022-10-31 5.67 2022-11-30 6.02 2022-12-31 5.92 2023-01-31 6.57 2023-02-28 6.97 2023-03-31 7.1 2023-04-30 8.25 2023-05-31 8.23 2023-06-30 8.43 2023-07-31 8.48 2023-08-31 8.19 2023-09-30 8.44 2023-10-31 8.44 2023-11-30 8.56 2023-12-31 8.55