Month	Percentage
1999-01-31	55.09
1999-02-28	54.76
1999-03-31	54.69
1999-04-30	54.82
1999-05-31	54.6
1999-06-30	55.12
1999-07-31	55.74
1999-08-31	55.98
1999-09-30	56.72
1999-10-31	57.17
1999-11-30	56.49
1999-12-31	57.61
2000-01-31	58.24
2000-02-29	57.29
2000-03-31	55.82
2000-04-30	55.76
2000-05-31	54.65
2000-06-30	54.86
2000-07-31	55.67
2000-08-31	55.61
2000-09-30	56.04
2000-10-31	55.76
2000-11-30	55.66
2000-12-31	56.02
2001-01-31	55.84
2001-02-28	56.03
2001-03-31	54.44
2001-04-30	54.29
2001-05-31	54.52
2001-06-30	54.97
2001-07-31	55.35
2001-08-31	55.19
2001-09-30	55.34
2001-10-31	55.32
2001-11-30	55.28
2001-12-31	56.38
2002-01-31	57.87
2002-02-28	57.64
2002-03-31	57.03
2002-04-30	57.28
2002-05-31	57.23
2002-06-30	57.98
2002-07-31	59.78
2002-08-31	59.78
2002-09-30	59.65
2002-10-31	60.3
2002-11-30	60.44
2002-12-31	61.84
2003-01-31	63.02
2003-02-28	62.31
2003-03-31	62.49
2003-04-30	62.23
2003-05-31	62.8
2003-06-30	62.69
2003-07-31	64.06
2003-08-31	64.33
2003-09-30	64.41
2003-10-31	65.12
2003-11-30	65
2003-12-31	65.53
2004-01-31	64.65
2004-02-29	65.53
2004-03-31	65.15
2004-04-30	64.94
2004-05-31	65.2
2004-06-30	65.26
2004-07-31	66.85
2004-08-31	66.71
2004-09-30	67.27
2004-10-31	67.36
2004-11-30	66.99
2004-12-31	67.95
2005-01-31	67.67
2005-02-28	67.67
2005-03-31	67.03
2005-04-30	66.55
2005-05-31	65.53
2005-06-30	65.93
2005-07-31	66.35
2005-08-31	67.42
2005-09-30	66.2
2005-10-31	66.25
2005-11-30	66.45
2005-12-31	66.24
2006-01-31	67.17
2006-02-28	66.28
2006-03-31	64.71
2006-04-30	64.69
2006-05-31	64.9
2006-06-30	65
2006-07-31	65.55
2006-08-31	65.96
2006-09-30	65.18
2006-10-31	65.13
2006-11-30	65.33
2006-12-31	65.23
2007-01-31	65.68
2007-02-28	65.44
2007-03-31	64.42
2007-04-30	63.79
2007-05-31	62.78
2007-06-30	63.2
2007-07-31	63.39
2007-08-31	63.73
2007-09-30	63.72
2007-10-31	64.75
2007-11-30	64.04
2007-12-31	63.65
2008-01-31	61.4
2008-02-29	61.24
2008-03-31	59.91
2008-04-30	59.89
2008-05-31	59.58
2008-06-30	59.75
2008-07-31	60.55
2008-08-31	59.82
2008-09-30	59.81
2008-10-31	57.53
2008-11-30	56.03
2008-12-31	55.48
2009-01-31	54.52
2009-02-28	54.4
2009-03-31	54.23
2009-04-30	54.55
2009-05-31	54.8
2009-06-30	55.25
2009-07-31	55.4
2009-08-31	54.89
2009-09-30	54.23
2009-10-31	53.49
2009-11-30	53.46
2009-12-31	54.35
2010-01-31	50.2
2010-02-28	49.7
2010-03-31	49.63
2010-04-30	49.97
2010-05-31	49.86
2010-06-30	50.2
2010-07-31	50.51
2010-08-31	50.86
2010-09-30	50.6
2010-10-31	50.46
2010-11-30	50.91
2010-12-31	51.57
2011-01-31	51.83
2011-02-28	51.59
2011-03-31	51.02
2011-04-30	50.88
2011-05-31	50.63
2011-06-30	51.13
2011-07-31	51.4
2011-08-31	51.54
2011-09-30	51.2
2011-10-31	51.95
2011-11-30	52.04
2011-12-31	53.07
2012-01-31	52.84
2012-02-29	53.48
2012-03-31	53.15
2012-04-30	52.71
2012-05-31	52.33
2012-06-30	53.34
2012-07-31	53.13
2012-08-31	53.41
2012-09-30	52.99
2012-10-31	53.12
2012-11-30	53.1
2012-12-31	52.65
2013-01-31	52.27
2013-02-28	51.99
2013-03-31	51.76
2013-04-30	51.49
2013-05-31	50.96
2013-06-30	51.01
2013-07-31	50.95
2013-08-31	50.84
2013-09-30	51.27
2013-10-31	51.48
2013-11-30	51.21
2013-12-31	52.35
2014-01-31	51.83
2014-02-28	51.12
2014-03-31	52.27
2014-04-30	52.36
2014-05-31	52.32
2014-06-30	52.63
2014-07-31	52.96
2014-08-31	52.64
2014-09-30	52.93
2014-10-31	53.21
2014-11-30	52.77
2014-12-31	53.33
2015-01-31	53.65
2015-02-28	53.74
2015-03-31	53.25
2015-04-30	53.35
2015-05-31	53.18
2015-06-30	53.75
2015-07-31	53.36
2015-08-31	53.38
2015-09-30	53.86
2015-10-31	53.86
2015-11-30	53.65
2015-12-31	53.95
2016-01-31	53.7
2016-02-29	53.12
2016-03-31	53.32
2016-04-30	53.36
2016-05-31	52.94
2016-06-30	51.45
2016-07-31	50.9
2016-08-31	50.59
2016-09-30	50.63
2016-10-31	50.03
2016-11-30	49.91
2016-12-31	50.47
2017-01-31	50.2
2017-02-28	49.61
2017-03-31	49.39
2017-04-30	49.04
2017-05-31	49.07
2017-06-30	49.25
2017-07-31	49.1
2017-08-31	48.67
2017-09-30	48.79
2017-10-31	48.54
2017-11-30	48.38
2017-12-31	49.14
2018-01-31	48.65
2018-02-28	48.68
2018-03-31	49.54
2018-04-30	49.21
2018-05-31	48.6
2018-06-30	48.88
2018-07-31	48.98
2018-08-31	48.93
2018-09-30	48.94
2018-10-31	48.56
2018-11-30	48.32
2018-12-31	48.62
2019-01-31	49.29
2019-02-28	49.85
2019-03-31	49.79
2019-04-30	49.53
2019-05-31	49.41
2019-06-30	49.57
2019-07-31	49.58
2019-08-31	49.38
2019-09-30	49.82
2019-10-31	50.29
2019-11-30	49.8
2019-12-31	50.37
2020-01-31	50.41
2020-02-29	50
2020-03-31	47.56
2020-04-30	47.15
2020-05-31	46.35
2020-06-30	46.13
2020-07-31	45.99
2020-08-31	46.32
2020-09-30	46.18
2020-10-31	46.36
2020-11-30	46.28
2020-12-31	46.18
2021-01-31	46.33
2021-02-28	46.1
2021-03-31	46
2021-04-30	45.71
2021-05-31	45.56
2021-06-30	45.77
2021-07-31	45.77
2021-08-31	45.6
2021-09-30	45.12
2021-10-31	44.91
2021-11-30	44.48
2021-12-31	44.88
2022-01-31	45.4
2022-02-28	44.75
2022-03-31	44.64
2022-04-30	44.74
2022-05-31	44.93
2022-06-30	44.82
2022-07-31	44.87
2022-08-31	44.74
2022-09-30	43.68
2022-10-31	44.05
2022-11-30	44.79
2022-12-31	45.35