Month	Percent
2007-01-01	41.97
2007-02-01	44.58
2007-03-01	45.23
2007-04-01	46.43
2007-05-01	45.43
2007-06-01	45.38
2007-07-01	45.76
2007-08-01	46.33
2007-09-01	46.85
2007-10-01	50.05
2007-11-01	48.46
2007-12-01	45.99
2008-01-01	43.98
2008-02-01	47.38
2008-03-01	47.33
2008-04-01	47.51
2008-05-01	48.73
2008-06-01	45.07
2008-07-01	47.37
2008-08-01	45.71
2008-09-01	46.78
2008-10-01	47.42
2008-11-01	44.79
2008-12-01	46.75
2009-01-01	44.33
2009-02-01	46.22
2009-03-01	47.90
2009-04-01	49.46
2009-05-01	49.82
2009-06-01	49.37
2009-07-01	49.37
2009-08-01	48.21
2009-09-01	49.25
2009-10-01	52.14
2009-11-01	51.70
2009-12-01	50.28
2010-01-01	47.81
2010-02-01	49.71
2010-03-01	49.18
2010-04-01	51.93
2010-05-01	50.45
2010-06-01	50.69
2010-07-01	50.68
2010-08-01	50.48
2010-09-01	52.65
2010-10-01	53.28
2010-11-01	52.91
2010-12-01	50.40
2011-01-01	49.49
2011-02-01	49.22
2011-03-01	51.03
2011-04-01	51.33
2011-05-01	52.49
2011-06-01	51.89
2011-07-01	51.49
2011-08-01	52.30
2011-09-01	53.71
2011-10-01	57.22
2011-11-01	55.68
2011-12-01	53.30
2012-01-01	50.98
2012-02-01	52.37
2012-03-01	53.97
2012-04-01	54.49
2012-05-01	54.34
2012-06-01	55.59
2012-07-01	53.32
2012-08-01	54.10
2012-09-01	54.26
2012-10-01	56.49
2012-11-01	54.75
2012-12-01	54.44
2013-01-01	51.21
2013-02-01	51.46
2013-03-01	53.12
2013-04-01	54.53
2013-05-01	56.34
2013-06-01	55.13
2013-07-01	54.68
2013-08-01	55.93
2013-09-01	55.11
2013-10-01	57.95
2013-11-01	55.44
2013-12-01	54.50
2014-01-01	52.18
2014-02-01	52.54
2014-03-01	53.71
2014-04-01	55.56
2014-05-01	55.06
2014-06-01	55.56
2014-07-01	54.97
2014-08-01	55.72
2014-09-01	56.54
2014-10-01	58.70
2014-11-01	56.99
2014-12-01	54.54
2015-01-01	52.67
2015-02-01	52.93
2015-03-01	55.06
2015-04-01	56.34
2015-05-01	56.49
2015-06-01	56.39
2015-07-01	55.35
2015-08-01	56.01
2015-09-01	57.11
2015-10-01	59.04
2015-11-01	58.20
2015-12-01	55.78
2016-01-01	52.49
2016-02-01	54.67
2016-03-01	54.32
2016-04-01	56.55
2016-05-01	56.38
2016-06-01	56.65
2016-07-01	54.08
2016-08-01	55.31
2016-09-01	56.44
2016-10-01	58.27
2016-11-01	58.02
2016-12-01	55.15
2017-01-01	52.44
2017-02-01	53.90
2017-03-01	54.15
2017-04-01	57.11
2017-05-01	54.93
2017-06-01	57.22
2017-07-01	54.10
2017-08-01	56.06
2017-09-01	56.07
2017-10-01	57.77
2017-11-01	55.90
2017-12-01	56.08
2018-01-01	51.95
2018-02-01	52.39
2018-03-01	53.94
2018-04-01	56.68
2018-05-01	54.36
2018-06-01	55.27
2018-07-01	54.19