Month	Percent
2007-01-01	49.63
2007-02-01	51.04
2007-03-01	49.25
2007-04-01	54.73
2007-05-01	50.79
2007-06-01	51.30
2007-07-01	50.64
2007-08-01	51.66
2007-09-01	51.47
2007-10-01	56.49
2007-11-01	54.27
2007-12-01	51.74
2008-01-01	52.38
2008-02-01	53.41
2008-03-01	55.07
2008-04-01	55.96
2008-05-01	54.04
2008-06-01	50.99
2008-07-01	53.30
2008-08-01	53.58
2008-09-01	53.08
2008-10-01	53.96
2008-11-01	54.84
2008-12-01	53.16
2009-01-01	53.86
2009-02-01	51.40
2009-03-01	52.43
2009-04-01	55.84
2009-05-01	54.37
2009-06-01	57.98
2009-07-01	55.08
2009-08-01	53.95
2009-09-01	54.79
2009-10-01	57.77
2009-11-01	57.51
2009-12-01	57.20
2010-01-01	55.95
2010-02-01	54.73
2010-03-01	54.53
2010-04-01	58.57
2010-05-01	57.40
2010-06-01	57.68
2010-07-01	58.24
2010-08-01	55.38
2010-09-01	58.42
2010-10-01	59.76
2010-11-01	59.79
2010-12-01	55.63
2011-01-01	59.19
2011-02-01	57.75
2011-03-01	60.02
2011-04-01	58.26
2011-05-01	58.56
2011-06-01	58.96
2011-07-01	58.18
2011-08-01	57.32
2011-09-01	60.48
2011-10-01	61.29
2011-11-01	61.64
2011-12-01	58.89
2012-01-01	58.15
2012-02-01	60.09
2012-03-01	62.73
2012-04-01	61.63
2012-05-01	60.22
2012-06-01	61.11
2012-07-01	60.09
2012-08-01	60.31
2012-09-01	59.47
2012-10-01	63.88
2012-11-01	61.02
2012-12-01	60.28
2013-01-01	60.39
2013-02-01	58.88
2013-03-01	59.42
2013-04-01	62.21
2013-05-01	60.59
2013-06-01	60.87
2013-07-01	61.32
2013-08-01	60.11
2013-09-01	61.43
2013-10-01	64.62
2013-11-01	62.28
2013-12-01	60.51
2014-01-01	58.21
2014-02-01	59.75
2014-03-01	60.11
2014-04-01	61.01
2014-05-01	61.02
2014-06-01	61.07
2014-07-01	61.55
2014-08-01	63.48
2014-09-01	63.66
2014-10-01	64.74
2014-11-01	63.56
2014-12-01	60.40
2015-01-01	60.73
2015-02-01	60.84
2015-03-01	60.77
2015-04-01	61.84
2015-05-01	61.92
2015-06-01	63.27
2015-07-01	62.43
2015-08-01	61.80
2015-09-01	61.53
2015-10-01	65.36
2015-11-01	66.48
2015-12-01	62.49
2016-01-01	62.47
2016-02-01	60.67
2016-03-01	61.07
2016-04-01	64.09
2016-05-01	62.48
2016-06-01	64.30
2016-07-01	62.19
2016-08-01	63.12
2016-09-01	64.84
2016-10-01	62.37
2016-11-01	63.16
2016-12-01	63.02
2017-01-01	61.10
2017-02-01	62.05
2017-03-01	62.39
2017-04-01	63.12
2017-05-01	62.12
2017-06-01	63.97
2017-07-01	63.21
2017-08-01	63.38
2017-09-01	62.63
2017-10-01	63.35
2017-11-01	64.10
2017-12-01	62.56
2018-01-01	62.12
2018-02-01	62.97
2018-03-01	61.71
2018-04-01	62.98
2018-05-01	62.65
2018-06-01	62.31
2018-07-01	62.47