Month	Percent
1999-01-31	12.19
1999-02-28	12.15
1999-03-31	11.91
1999-04-30	11.81
1999-05-31	11.71
1999-06-30	11.64
1999-07-31	11.8
1999-08-31	11.68
1999-09-30	11.68
1999-10-31	11.68
1999-11-30	11.66
1999-12-31	11.53
2000-01-31	11.46
2000-02-29	11.86
2000-03-31	11.56
2000-04-30	11.63
2000-05-31	11.55
2000-06-30	11.66
2000-07-31	11.4
2000-08-31	11.37
2000-09-30	11.37
2000-10-31	11.18
2000-11-30	11.26
2000-12-31	10.99
2001-01-31	11.38
2001-02-28	11.41
2001-03-31	11.23
2001-04-30	11.06
2001-05-31	10.99
2001-06-30	10.96
2001-07-31	10.85
2001-08-31	10.74
2001-09-30	10.56
2001-10-31	10.47
2001-11-30	10.21
2001-12-31	9.98
2002-01-31	9.94
2002-02-28	9.99
2002-03-31	9.85
2002-04-30	9.82
2002-05-31	9.74
2002-06-30	9.68
2002-07-31	9.7
2002-08-31	9.62
2002-09-30	9.57
2002-10-31	9.4
2002-11-30	9.36
2002-12-31	9.3
2003-01-31	9.31
2003-02-28	9.23
2003-03-31	9.13
2003-04-30	9.08
2003-05-31	9.08
2003-06-30	9.05
2003-07-31	8.95
2003-08-31	8.85
2003-09-30	8.91
2003-10-31	8.89
2003-11-30	8.85
2003-12-31	8.92
2004-01-31	9.05
2004-02-29	9.09
2004-03-31	9.12
2004-04-30	9.09
2004-05-31	9.13
2004-06-30	9.18
2004-07-31	9.03
2004-08-31	8.98
2004-09-30	8.96
2004-10-31	8.9
2004-11-30	8.92
2004-12-31	8.94
2005-01-31	8.85
2005-02-28	8.88
2005-03-31	8.95
2005-04-30	8.9
2005-05-31	8.86
2005-06-30	8.87
2005-07-31	8.82
2005-08-31	8.81
2005-09-30	8.77
2005-10-31	8.65
2005-11-30	8.67
2005-12-31	8.62
2006-01-31	8.59
2006-02-28	8.58
2006-03-31	8.56
2006-04-30	8.49
2006-05-31	8.48
2006-06-30	8.51
2006-07-31	8.44
2006-08-31	8.52
2006-09-30	8.52
2006-10-31	8.47
2006-11-30	8.53
2006-12-31	8.52
2007-01-31	8.55
2007-02-28	8.6
2007-03-31	8.65
2007-04-30	8.57
2007-05-31	8.66
2007-06-30	8.61
2007-07-31	8.73
2007-08-31	8.78
2007-09-30	8.8
2007-10-31	8.82
2007-11-30	8.81
2007-12-31	8.47
2008-01-31	8.48
2008-02-29	8.46
2008-03-31	8.43
2008-04-30	8.39
2008-05-31	8.43
2008-06-30	8.46
2008-07-31	8.47
2008-08-31	8.53
2008-09-30	8.57
2008-10-31	8.46
2008-11-30	8.03
2008-12-31	7.69
2009-01-31	7.49
2009-02-28	7.29
2009-03-31	7.1
2009-04-30	7.04
2009-05-31	7.04
2009-06-30	7.06
2009-07-31	7.04
2009-08-31	7.06
2009-09-30	7.12
2009-10-31	6.95
2009-11-30	7.01
2009-12-31	7
2010-01-31	7.07
2010-02-28	7.1
2010-03-31	7.12
2010-04-30	7.06
2010-05-31	7.09
2010-06-30	7.06
2010-07-31	7.03
2010-08-31	7.01
2010-09-30	6.93
2010-10-31	6.87
2010-11-30	7.1
2010-12-31	7.1
2011-01-31	7.45
2011-02-28	7.56
2011-03-31	7.52
2011-04-30	7.5
2011-05-31	7.48
2011-06-30	7.49
2011-07-31	7.49
2011-08-31	7.48
2011-09-30	7.52
2011-10-31	7.55
2011-11-30	7.42
2011-12-31	7.38
2012-01-31	7.63
2012-02-29	7.56
2012-03-31	7.69
2012-04-30	7.69
2012-05-31	7.64
2012-06-30	7.72
2012-07-31	7.75
2012-08-31	7.79
2012-09-30	7.78
2012-10-31	7.72
2012-11-30	7.71
2012-12-31	7.7
2013-01-31	7.7
2013-02-28	7.75
2013-03-31	7.71
2013-04-30	7.7
2013-05-31	7.76
2013-06-30	7.72
2013-07-31	7.67
2013-08-31	7.65
2013-09-30	7.66
2013-10-31	7.62
2013-11-30	7.65
2013-12-31	7.59
2014-01-31	7.57
2014-02-28	7.58
2014-03-31	7.5
2014-04-30	7.46
2014-05-31	7.4
2014-06-30	7.39
2014-07-31	7.34
2014-08-31	7.3
2014-09-30	7.4
2014-10-31	7.25
2014-11-30	7.24
2014-12-31	7.22
2015-01-31	7.27
2015-02-28	7.22
2015-03-31	7.12
2015-04-30	7.09
2015-05-31	7.03
2015-06-30	7.02
2015-07-31	6.88
2015-08-31	6.89
2015-09-30	6.84
2015-10-31	6.81
2015-11-30	6.76
2015-12-31	6.73
2016-01-31	7.01
2016-02-29	6.97
2016-03-31	6.94
2016-04-30	6.92
2016-05-31	6.88
2016-06-30	6.88
2016-07-31	6.86
2016-08-31	6.78
2016-09-30	6.76
2016-10-31	6.71
2016-11-30	6.7
2016-12-31	6.68
2017-01-31	6.64
2017-02-28	6.66
2017-03-31	6.62
2017-04-30	6.61
2017-05-31	6.57
2017-06-30	6.58
2017-07-31	6.55
2017-08-31	6.51
2017-09-30	6.6
2017-10-31	6.58
2017-11-30	6.61
2017-12-31	6.6
2018-01-31	6.57
2018-02-28	6.52
2018-03-31	6.49
2018-04-30	6.51
2018-05-31	6.47
2018-06-30	6.37
2018-07-31	6.32
2018-08-31	6.42
2018-09-30	6.39
2018-10-31	6.37
2018-11-30	6.42
2018-12-31	6.38
2019-01-31	6.29
2019-02-28	6.4
2019-03-31	6.31
2019-04-30	6.29
2019-05-31	6.26
2019-06-30	6.45
2019-07-31	6.5
2019-08-31	6.46
2019-09-30	6.48
2019-10-31	6.52
2019-11-30	6.48
2019-12-31	6.47
2020-01-31	6.48
2020-02-29	6.49
2020-03-31	6.4
2020-04-30	6.31
2020-05-31	6.18
2020-06-30	6
2020-07-31	5.81
2020-08-31	5.72
2020-09-30	5.73
2020-10-31	5.62
2020-11-30	5.59
2020-12-31	5.53
2021-01-31	5.47
2021-02-28	5.48
2021-03-31	5.43
2021-04-30	5.41
2021-05-31	5.46
2021-06-30	5.51
2021-07-31	5.49
2021-08-31	5.54
2021-09-30	5.61
2021-10-31	5.57
2021-11-30	5.68
2021-12-31	5.63
2022-01-31	5.72
2022-02-28	5.8
2022-03-31	5.84
2022-04-30	5.9
2022-05-31	5.9
2022-06-30	5.96
2022-07-31	6
2022-08-31	6.08
2022-09-30	6.19
2022-10-31	6.26
2022-11-30	6.38
2022-12-31	6.5
2023-01-31	6.59
2023-02-28	6.75
2023-03-31	6.86
2023-04-30	6.99
2023-05-31	7.05
2023-06-30	7.18
2023-07-31	7.28
2023-08-31	7.38
2023-09-30	7.48
2023-10-31	7.51
2023-11-30	7.59
2023-12-31	7.53