Month	Percent
1997-01-31	7
1997-02-28	7
1997-03-31	7
1997-04-30	7
1997-05-31	7
1997-06-30	7.25
1997-07-31	7.5
1997-08-31	7.75
1997-09-30	8
1997-10-31	8
1997-11-30	8
1997-12-31	8.25
1998-01-31	8.25
1998-02-28	8.25
1998-03-31	8.25
1998-04-30	8.25
1998-05-31	8.25
1998-06-30	8.25
1998-07-31	8.5
1998-08-31	8.5
1998-09-30	8.5
1998-10-31	8.5
1998-11-30	8.25
1998-12-31	7.75
1999-01-31	7.25
1999-02-28	7
1999-03-31	6.5
1999-04-30	6.5
1999-05-31	6.25
1999-06-30	6
1999-07-31	6
1999-08-31	6.12
1999-09-30	5.99
1999-10-31	6.22
1999-11-30	6.23
1999-12-31	6.54
2000-01-31	6.53
2000-02-29	6.76
2000-03-31	6.99
2000-04-30	6.99
2000-05-31	7
2000-06-30	7.11
2000-07-31	7.05
2000-08-31	7.05
2000-09-30	7.04
2000-10-31	6.94
2000-11-30	6.96
2000-12-31	6.99
2001-01-31	7.01
2001-02-28	6.72
2001-03-31	6.71
2001-04-30	6.47
2001-05-31	6.23
2001-06-30	6.21
2001-07-31	6.22
2001-08-31	5.97
2001-09-30	5.74
2001-10-31	5.5
2001-11-30	5.01
2001-12-31	5
2002-01-31	4.98
2002-02-28	5
2002-03-31	5.03
2002-04-30	5.04
2002-05-31	5.05
2002-06-30	5.03
2002-07-31	5.03
2002-08-31	5.03
2002-09-30	5.08
2002-10-31	5.11
2002-11-30	5.11
2002-12-31	5.12
2003-01-31	5.12
2003-02-28	4.91
2003-03-31	4.92
2003-04-30	4.93
2003-05-31	4.91
2003-06-30	4.92
2003-07-31	4.7
2003-08-31	4.68
2003-09-30	4.69
2003-10-31	4.67
2003-11-30	4.84
2003-12-31	4.91
2004-01-31	4.88
2004-02-29	5.09
2004-03-31	5.02
2004-04-30	5.02
2004-05-31	5.2
2004-06-30	5.52
2004-07-31	5.54
2004-08-31	5.37
2004-09-30	5.43
2004-10-31	5.42
2004-11-30	5.43
2004-12-31	5.43
2005-01-31	5.39
2005-02-28	5.37
2005-03-31	5.38
2005-04-30	5.38
2005-05-31	5.36
2005-06-30	5.37
2005-07-31	5.36
2005-08-31	5.19
2005-09-30	5.18
2005-10-31	5.2
2005-11-30	5.18
2005-12-31	5.29
2006-01-31	5.23
2006-02-28	5.25
2006-03-31	5.21
2006-04-30	5.23
2006-05-31	5.25
2006-06-30	5.15
2006-07-31	5.16
2006-08-31	5.33
2006-09-30	5.42
2006-10-31	5.4
2006-11-30	5.56
2006-12-31	5.63
2007-01-31	5.73
2007-02-28	5.86
2007-03-31	5.88
2007-04-30	5.92
2007-05-31	6.03
2007-06-30	6.09
2007-07-31	6.22
2007-08-31	6.32
2007-09-30	6.24
2007-10-31	6.31
2007-11-30	6.39
2007-12-31	6.2
2008-01-31	6.24
2008-02-29	5.98
2008-03-31	6.05
2008-04-30	6
2008-05-31	6.17
2008-06-30	6.31
2008-07-31	6.26
2008-08-31	6.2
2008-09-30	6.12
2008-10-31	7.04
2008-11-30	5.78
2008-12-31	4.92
2009-01-31	4.51
2009-02-28	4.31
2009-03-31	4
2009-04-30	3.83
2009-05-31	3.97
2009-06-30	3.77
2009-07-31	3.81
2009-08-31	3.85
2009-09-30	3.9
2009-10-31	3.86
2009-11-30	3.89
2009-12-31	3.92
2010-01-31	3.6
2010-02-28	3.7
2010-03-31	3.76
2010-04-30	3.79
2010-05-31	3.71
2010-06-30	3.72
2010-07-31	3.72
2010-08-31	3.57
2010-09-30	3.56
2010-10-31	3.49
2010-11-30	3.5
2010-12-31	3.51
2011-01-31	3.5
2011-02-28	3.53
2011-03-31	3.47
2011-04-30	3.44
2011-05-31	3.37
2011-06-30	3.13
2011-07-31	3.08
2011-08-31	3.08
2011-09-30	3.24
2011-10-31	3.27
2011-11-30	3.3
2011-12-31	3.38
2012-01-31	3.57
2012-02-29	3.5
2012-03-31	3.57
2012-04-30	3.6
2012-05-31	3.6
2012-06-30	3.65
2012-07-31	3.62
2012-08-31	3.64
2012-09-30	3.59
2012-10-31	3.64
2012-11-30	3.66
2012-12-31	3.66
2013-01-31	3.57
2013-02-28	3.59
2013-03-31	3.56
2013-04-30	3.55
2013-05-31	3.55
2013-06-30	3.56
2013-07-31	3.28
2013-08-31	3.26
2013-09-30	3.19
2013-10-31	3.14
2013-11-30	3.03
2013-12-31	2.92
2014-01-31	2.96
2014-02-28	2.83
2014-03-31	2.81
2014-04-30	2.8
2014-05-31	2.84
2014-06-30	2.76
2014-07-31	2.91
2014-08-31	2.88
2014-09-30	2.94
2014-10-31	2.94
2014-11-30	2.97
2014-12-31	2.89
2015-01-31	2.88
2015-02-28	2.51
2015-03-31	2.52
2015-04-30	2.6
2015-05-31	2.57
2015-06-30	2.59
2015-07-31	2.58
2015-08-31	2.62
2015-09-30	2.56
2015-10-31	2.55
2015-11-30	2.59
2015-12-31	2.6
2016-01-31	2.43
2016-02-29	2.44
2016-03-31	2.3
2016-04-30	2.34
2016-05-31	2.43
2016-06-30	2.43
2016-07-31	2.43
2016-08-31	2.18
2016-09-30	2.2
2016-10-31	2.2
2016-11-30	2.29
2016-12-31	2.29
2017-01-31	2.3
2017-02-28	2.31
2017-03-31	2.31
2017-04-30	2.33
2017-05-31	2.34
2019-02-28	2.56
2019-03-31	2.56
2019-04-30	2.63
2019-05-31	2.63
2019-06-30	2.62
2019-07-31	2.56
2019-08-31	2.56
2019-09-30	2.56
2019-10-31	2.56
2019-11-30	2.57
2019-12-31	2.53
2020-01-31	2.5
2020-02-29	2.5
2020-03-31	2.19
2020-07-31	2.59
2020-08-31	2.59
2020-09-30	2.59
2020-10-31	2.59
2020-11-30	2.59
2020-12-31	2.59
2021-04-30	2.59
2021-05-31	0
2021-06-30	2.59
2021-07-31	2.59
2021-08-31	2.59
2021-09-30	2.59
2023-09-30	7.33
2023-10-31	6.95
2023-11-30	6.77
2023-12-31	6.77