Month	Percent
2001-01-01	7.64
2001-02-01	7.82
2001-03-01	7.90
2001-04-01	7.90
2001-05-01	7.54
2001-06-01	7.60
2001-07-01	7.75
2001-08-01	7.66
2001-09-01	7.58
2001-10-01	7.48
2001-11-01	7.08
2001-12-01	6.93
2002-01-01	6.35
2002-02-01	5.98
2002-03-01	5.80
2002-04-01	5.78
2002-05-01	5.59
2002-06-01	5.38
2002-07-01	5.34
2002-08-01	5.34
2002-09-01	5.14
2002-10-01	4.88
2002-11-01	4.79
2002-12-01	4.53
2003-01-01	4.62
2003-02-01	4.77
2003-03-01	4.99
2003-04-01	4.99
2003-05-01	4.95
2003-06-01	4.89
2003-07-01	4.78
2003-08-01	4.80
2003-09-01	4.96
2003-10-01	4.98
2003-11-01	5.01
2003-12-01	5.07
2004-01-01	5.06
2004-02-01	5.05
2004-03-01	4.98
2004-04-01	4.89
2004-05-01	4.95
2004-06-01	4.93
2004-07-01	4.89
2004-08-01	4.88
2004-09-01	4.87
2004-10-01	4.63
2004-11-01	4.58
2004-12-01	4.58
2005-01-01	4.29
2005-02-01	4.03
2005-03-01	3.94
2005-04-01	3.87
2005-05-01	3.87
2005-06-01	3.87
2005-07-01	3.87
2005-08-01	3.87
2005-09-01	3.87
2005-10-01	3.87
2005-11-01	3.56
2005-12-01	3.59
2006-01-01	3.60
2006-02-01	3.60
2006-03-01	3.60
2006-04-01	3.60
2006-05-01	3.60
2006-06-01	4.14
2006-07-01	4.32
2006-08-01	4.36
2006-09-01	4.38
2006-10-01	4.55
2006-11-01	4.95
2006-12-01	4.90
2007-01-01	4.92
2007-02-01	5.07
2007-03-01	5.14
2007-04-01	5.52
2007-05-01	6.03
2007-06-01	5.62
2007-07-01	5.28
2007-08-01	5.32
2007-09-01	5.21
2007-10-01	5.06
2007-11-01	5.12
2007-12-01	5.10
2008-01-01	5.71
2008-02-01	5.11
2008-03-01	5.25
2008-04-01	5.93
2008-05-01	5.93
2008-06-01	6.25
2008-07-01	6.57
2008-08-01	6.60
2008-09-01	6.60
2008-10-01	6.60
2008-11-01	7.60
2008-12-01	9.03
2009-01-01	10.64
2009-02-01	11.50
2009-03-01	11.32
2009-04-01	11.15
2009-05-01	11.09
2009-06-01	12.75
2009-07-01	12.75
2009-08-01	12.81
2009-09-01	13.27
2009-10-01	13.51
2009-11-01	13.75
2009-12-01	13.75
2010-01-01	13.76
2010-02-01	13.62
2010-03-01	10.54
2010-04-01	10.13
2010-05-01	10.13
2010-06-01	10.12
2010-07-01	10.00
2010-08-01	10.00
2010-09-01	9.97
2010-10-01	9.24
2010-11-01	8.99
2010-12-01	7.55
2011-01-01	5.38
2011-02-01	6.17
2011-03-01	6.49
2011-04-01	6.47
2011-05-01	6.36
2011-06-01	5.87
2011-07-01	5.67
2011-08-01	5.60
2011-09-01	5.60
2011-10-01	5.62
2011-11-01	5.73
2011-12-01	5.93
2012-01-01	5.74
2012-02-01	5.45
2012-03-01	5.15
2012-04-01	5.10
2012-05-01	5.15
2012-06-01	5.07
2012-07-01	4.67
2012-08-01	4.45
2012-09-01	3.92
2012-10-01	3.52
2012-11-01	3.32
2012-12-01	3.24
2013-01-01	3.21
2013-02-01	3.22
2013-03-01	3.17
2013-04-01	3.15
2013-05-01	3.10
2013-06-01	3.17
2013-07-01	3.25
2013-08-01	3.25
2013-09-01	3.45
2013-10-01	3.78
2013-11-01	3.71
2013-12-01	3.62
2014-01-01	3.48
2014-02-01	3.07
2014-03-01	2.87
2014-04-01	2.80
2014-05-01	2.74
2014-06-01	2.53
2014-07-01	2.40
2014-08-01	2.35
2014-09-01	2.28
2014-10-01	2.18
2014-11-01	1.77
2014-12-01	1.63
2015-01-01	1.10
2015-02-01	0.78
2015-03-01	0.56
2015-04-01	0.42
2015-05-01	0.84
2015-06-01	1.28
2015-07-01	1.25
2015-08-01	0.96
2015-09-01	1.03
2015-10-01	1.07
2015-11-01	1.19
2015-12-01	1.08
2016-01-01	1.05
2016-02-01	0.88
2016-03-01	0.71
2016-04-01	0.61
2016-05-01	0.51
2016-06-01	0.48
2016-07-01	0.30
2016-08-01	0.12
2016-09-01	0.10
2016-10-01	0.19
2016-11-01	0.56
2016-12-01	0.90
2017-01-01	0.89
2017-02-01	0.99
2017-03-01	0.94
2017-04-01	0.92
2017-05-01	0.88
2017-06-01	0.85
2017-07-01	0.98
2017-08-01	0.85
2017-09-01	0.72
2017-10-01	0.71
2017-11-01	0.69
2017-12-01	0.59
2018-01-01	0.60
2018-02-01	0.75
2018-03-01	0.83
2018-04-01	0.80
2018-05-01	0.86
2018-06-01	0.93
2018-07-01	1.06
2018-08-01	0.95
2018-09-01	0.94