Month Percent 2004-01-31 2.73 2004-02-29 3.41 2004-03-31 3.21 2004-04-30 3.29 2004-05-31 3.45 2004-06-30 3.64 2004-07-31 3.85 2004-08-31 4.03 2004-09-30 4.11 2004-10-31 4.17 2004-11-30 4.02 2004-12-31 4.2 2005-01-31 4.21 2005-02-28 4.25 2005-03-31 4.32 2005-04-30 4.26 2005-05-31 4.21 2005-06-30 4.22 2005-07-31 4.27 2005-08-31 4.13 2005-09-30 4.04 2005-10-31 4.09 2005-11-30 4.01 2005-12-31 4.07 2006-01-31 3.95 2006-02-28 3.89 2006-03-31 3.92 2006-04-30 4.02 2006-05-31 4.04 2006-06-30 4.01 2006-07-31 4.07 2006-08-31 4.39 2006-09-30 4.33 2006-10-31 4.39 2006-11-30 4.47 2006-12-31 4.57 2007-01-31 4.74 2007-02-28 4.78 2007-03-31 4.73 2007-04-30 4.88 2007-05-31 4.92 2007-06-30 4.99 2007-07-31 5.27 2007-08-31 5.25 2007-09-30 5.31 2007-10-31 5.35 2007-11-30 5.23 2007-12-31 5.15 2008-01-31 5.2 2008-02-29 4.88 2008-03-31 4.84 2008-04-30 4.68 2008-05-31 4.5 2008-06-30 4.52 2008-07-31 4.55 2008-08-31 4.57 2008-09-30 4.61 2008-10-31 4.32 2008-11-30 3.16 2008-12-31 1.9 2009-01-31 2.42 2009-02-28 2.07 2009-03-31 1.85 2009-04-30 1.81 2009-05-31 1.97 2009-06-30 1.99 2009-07-31 2 2009-08-31 2.01 2009-09-30 1.87 2009-10-31 1.89 2009-11-30 1.83 2009-12-31 1.82 2010-01-31 1.75 2010-02-28 1.74 2010-03-31 1.76 2010-04-30 1.73 2010-05-31 1.71 2010-06-30 1.69 2010-07-31 1.72 2010-08-31 0.63 2010-09-30 0.63 2010-10-31 0.63 2010-11-30 0.63 2010-12-31 0.71 2011-01-31 0.66 2011-02-28 0.64 2011-03-31 0.61 2011-04-30 0.6 2011-05-31 0.64 2011-06-30 0.67 2011-07-31 0.68 2011-08-31 0.65 2011-09-30 0.64 2011-10-31 0.65 2011-11-30 0.66 2011-12-31 0.78 2012-01-31 0.66 2012-02-29 0.63 2012-03-31 0.66 2012-04-30 0.63 2012-05-31 0.61 2012-06-30 0.72 2012-07-31 0.66 2012-08-31 0.7 2012-09-30 0.63 2012-10-31 0.62 2012-11-30 0.65 2012-12-31 0.67 2013-01-31 0.63 2013-02-28 0.58 2013-03-31 0.61 2013-04-30 0.58 2013-05-31 0.55 2013-06-30 0.66 2013-07-31 0.59 2013-08-31 0.58 2013-09-30 0.48 2013-10-31 0.52 2013-11-30 0.59 2013-12-31 0.58 2014-01-31 0.56 2014-02-28 0.45 2014-03-31 0.47 2014-04-30 0.49 2014-05-31 0.38 2014-06-30 0.37 2014-07-31 0.35 2014-08-31 0.34 2014-09-30 0.35 2014-10-31 0.34 2014-11-30 0.33 2014-12-31 0.33 2015-01-31 0.34 2015-02-28 0.34 2015-03-31 0.34 2015-04-30 0.32 2015-05-31 0.31 2015-06-30 0.31 2015-07-31 0.3 2015-08-31 0.32 2015-09-30 0.32 2015-10-31 0.32 2015-11-30 0.35 2015-12-31 0.36 2016-01-31 0.38 2016-02-29 0.38 2016-03-31 0.39 2016-04-30 0.39 2016-05-31 0.41 2016-06-30 0.4 2016-07-31 0.39 2016-08-31 0.31 2016-09-30 0.26 2016-10-31 0.26 2016-11-30 0.25 2016-12-31 0.24 2017-01-31 0.22 2017-02-28 0.22 2017-03-31 0.23 2017-04-30 0.21 2017-05-31 0.21 2017-06-30 0.19 2017-07-31 0.19 2017-08-31 0.18 2017-09-30 0.18 2017-10-31 0.17 2017-11-30 0.25 2017-12-31 0.26 2018-01-31 0.27 2018-02-28 0.28 2018-03-31 0.29 2018-04-30 0.27 2018-05-31 0.27 2018-06-30 0.28 2018-07-31 0.27 2018-08-31 0.34 2018-09-30 0.4 2018-10-31 0.4 2018-11-30 0.41 2018-12-31 0.43 2019-01-31 0.4 2019-02-28 0.4 2019-03-31 0.41 2019-04-30 0.4 2019-05-31 0.41 2019-06-30 0.43 2019-07-31 0.41 2019-08-31 0.43 2019-09-30 0.45 2019-10-31 0.44 2019-11-30 0.43 2019-12-31 0.44 2020-01-31 0.44 2020-02-29 0.43 2020-03-31 0.36 2020-04-30 0.26 2020-05-31 0.24 2020-06-30 0.11 2020-07-31 0.11 2020-08-31 0.11 2020-09-30 0.11 2020-10-31 0.11 2020-11-30 0.09 2020-12-31 0.09 2021-01-31 0.09 2021-02-28 0.08 2021-03-31 0.07 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 0.08 2021-10-31 0.07 2021-11-30 0.08 2021-12-31 0.08 2022-01-31 0.11 2022-02-28 0.14 2022-03-31 0.18 2022-04-30 0.25 2022-05-31 0.28 2022-06-30 0.34 2022-07-31 0.38 2022-08-31 0.46 2022-09-30 0.54 2022-10-31 0.73 2022-11-30 0.86 2022-12-31 1.02 2023-01-31 1.15 2023-02-28 1.27 2023-03-31 1.44 2023-04-30 1.55 2023-05-31 1.59 2023-06-30 1.68 2023-07-31 1.96 2023-08-31 2.13 2023-09-30 2.14 2023-10-31 2.17 2023-11-30 2.15 2023-12-31 2.23