Month	Percent
2007-01-01	38.99
2007-02-01	41.38
2007-03-01	41.94
2007-04-01	43.15
2007-05-01	42.14
2007-06-01	42.12
2007-07-01	42.11
2007-08-01	42.94
2007-09-01	43.43
2007-10-01	46.62
2007-11-01	44.88
2007-12-01	42.66
2008-01-01	40.61
2008-02-01	43.64
2008-03-01	43.86
2008-04-01	44.12
2008-05-01	45.04
2008-06-01	41.64
2008-07-01	43.84
2008-08-01	42.10
2008-09-01	43.23
2008-10-01	44.20
2008-11-01	41.10
2008-12-01	43.34
2009-01-01	41.06
2009-02-01	43.06
2009-03-01	44.52
2009-04-01	46.10
2009-05-01	46.21
2009-06-01	45.77
2009-07-01	45.87
2009-08-01	44.45
2009-09-01	45.57
2009-10-01	48.38
2009-11-01	47.84
2009-12-01	46.89
2010-01-01	44.38
2010-02-01	46.47
2010-03-01	45.77
2010-04-01	48.26
2010-05-01	46.74
2010-06-01	47.06
2010-07-01	46.70
2010-08-01	46.90
2010-09-01	48.88
2010-10-01	49.52
2010-11-01	49.28
2010-12-01	46.81
2011-01-01	45.61
2011-02-01	45.70
2011-03-01	47.44
2011-04-01	47.61
2011-05-01	48.90
2011-06-01	48.00
2011-07-01	47.85
2011-08-01	48.52
2011-09-01	49.86
2011-10-01	53.08
2011-11-01	51.81
2011-12-01	49.08
2012-01-01	47.47
2012-02-01	48.80
2012-03-01	50.22
2012-04-01	50.55
2012-05-01	50.67
2012-06-01	51.67
2012-07-01	49.66
2012-08-01	50.10
2012-09-01	50.10
2012-10-01	52.19
2012-11-01	50.56
2012-12-01	50.22
2013-01-01	47.66
2013-02-01	47.87
2013-03-01	49.13
2013-04-01	50.37
2013-05-01	52.05
2013-06-01	51.30
2013-07-01	50.74
2013-08-01	51.71
2013-09-01	50.79
2013-10-01	53.88
2013-11-01	51.44
2013-12-01	50.41
2014-01-01	48.21
2014-02-01	48.50
2014-03-01	49.57
2014-04-01	51.44
2014-05-01	50.90
2014-06-01	51.49
2014-07-01	50.89
2014-08-01	51.73
2014-09-01	52.13
2014-10-01	54.20
2014-11-01	52.76
2014-12-01	50.38
2015-01-01	48.66
2015-02-01	49.12
2015-03-01	51.01
2015-04-01	52.23
2015-05-01	52.08
2015-06-01	52.11
2015-07-01	51.10
2015-08-01	51.61
2015-09-01	52.60
2015-10-01	54.57
2015-11-01	53.66
2015-12-01	51.17
2016-01-01	48.72
2016-02-01	50.32
2016-03-01	49.87
2016-04-01	52.00
2016-05-01	51.61
2016-06-01	52.12
2016-07-01	49.95
2016-08-01	50.96
2016-09-01	51.81
2016-10-01	53.88
2016-11-01	53.16
2016-12-01	50.80
2017-01-01	48.16
2017-02-01	49.46
2017-03-01	49.74
2017-04-01	52.54
2017-05-01	50.60
2017-06-01	52.67
2017-07-01	49.78
2017-08-01	51.40
2017-09-01	51.04
2017-10-01	53.08
2017-11-01	51.37
2017-12-01	51.25
2018-01-01	47.66
2018-02-01	48.12
2018-03-01	49.60
2018-04-01	51.76
2018-05-01	50.12
2018-06-01	50.74
2018-07-01	49.59