Month	Percent
2007-01-01	62.37
2007-02-01	64.29
2007-03-01	62.99
2007-04-01	64.60
2007-05-01	63.56
2007-06-01	63.56
2007-07-01	63.46
2007-08-01	63.29
2007-09-01	63.79
2007-10-01	66.32
2007-11-01	65.00
2007-12-01	63.38
2008-01-01	63.36
2008-02-01	64.90
2008-03-01	65.07
2008-04-01	65.31
2008-05-01	64.91
2008-06-01	62.85
2008-07-01	64.66
2008-08-01	63.68
2008-09-01	64.14
2008-10-01	64.14
2008-11-01	62.73
2008-12-01	64.16
2009-01-01	64.29
2009-02-01	65.63
2009-03-01	66.16
2009-04-01	67.44
2009-05-01	67.31
2009-06-01	66.93
2009-07-01	67.48
2009-08-01	65.99
2009-09-01	66.64
2009-10-01	69.33
2009-11-01	68.31
2009-12-01	67.87
2010-01-01	67.73
2010-02-01	67.86
2010-03-01	66.95
2010-04-01	68.77
2010-05-01	67.71
2010-06-01	68.29
2010-07-01	68.06
2010-08-01	67.94
2010-09-01	68.79
2010-10-01	69.18
2010-11-01	69.12
2010-12-01	68.43
2011-01-01	68.18
2011-02-01	68.01
2011-03-01	68.16
2011-04-01	68.21
2011-05-01	68.99
2011-06-01	68.39
2011-07-01	68.61
2011-08-01	67.95
2011-09-01	69.04
2011-10-01	71.57
2011-11-01	70.40
2011-12-01	69.53
2012-01-01	69.27
2012-02-01	69.79
2012-03-01	69.72
2012-04-01	69.77
2012-05-01	70.36
2012-06-01	70.67
2012-07-01	69.54
2012-08-01	69.72
2012-09-01	68.92
2012-10-01	70.55
2012-11-01	69.43
2012-12-01	69.66
2013-01-01	69.08
2013-02-01	68.95
2013-03-01	68.26
2013-04-01	68.87
2013-05-01	70.40
2013-06-01	69.16
2013-07-01	69.54
2013-08-01	69.85
2013-09-01	69.00
2013-10-01	70.78
2013-11-01	69.33
2013-12-01	69.41
2014-01-01	68.90
2014-02-01	68.63
2014-03-01	68.41
2014-04-01	69.11
2014-05-01	69.24
2014-06-01	69.54
2014-07-01	68.95
2014-08-01	69.71
2014-09-01	69.73
2014-10-01	71.30
2014-11-01	70.25
2014-12-01	69.11
2015-01-01	68.80
2015-02-01	68.81
2015-03-01	68.98
2015-04-01	70.30
2015-05-01	69.84
2015-06-01	69.49
2015-07-01	69.21
2015-08-01	69.80
2015-09-01	69.68
2015-10-01	71.61
2015-11-01	70.51
2015-12-01	69.94
2016-01-01	69.58
2016-02-01	69.27
2016-03-01	68.39
2016-04-01	69.90
2016-05-01	68.91
2016-06-01	69.75
2016-07-01	68.47
2016-08-01	69.34
2016-09-01	68.94
2016-10-01	70.78
2016-11-01	69.83
2016-12-01	69.39
2017-01-01	68.76
2017-02-01	68.89
2017-03-01	68.49
2017-04-01	69.61
2017-05-01	68.98
2017-06-01	70.06
2017-07-01	68.68
2017-08-01	69.31
2017-09-01	68.95
2017-10-01	69.98
2017-11-01	69.26
2017-12-01	68.94
2018-01-01	68.02
2018-02-01	67.86
2018-03-01	68.03
2018-04-01	69.22
2018-05-01	68.69
2018-06-01	69.02
2018-07-01	68.46