Month	Percent
2007-01-01	69.28
2007-02-01	71.77
2007-03-01	70.07
2007-04-01	72.87
2007-05-01	71.25
2007-06-01	71.73
2007-07-01	71.69
2007-08-01	71.05
2007-09-01	71.39
2007-10-01	73.56
2007-11-01	73.82
2007-12-01	72.56
2008-01-01	70.46
2008-02-01	71.55
2008-03-01	72.64
2008-04-01	72.82
2008-05-01	71.61
2008-06-01	71.09
2008-07-01	70.77
2008-08-01	72.06
2008-09-01	71.98
2008-10-01	72.02
2008-11-01	71.93
2008-12-01	72.49
2009-01-01	70.19
2009-02-01	72.73
2009-03-01	72.71
2009-04-01	73.30
2009-05-01	73.45
2009-06-01	73.82
2009-07-01	72.80
2009-08-01	72.97
2009-09-01	72.27
2009-10-01	75.03
2009-11-01	74.39
2009-12-01	74.48
2010-01-01	72.02
2010-02-01	72.81
2010-03-01	73.18
2010-04-01	73.15
2010-05-01	73.11
2010-06-01	74.36
2010-07-01	73.05
2010-08-01	74.62
2010-09-01	74.85
2010-10-01	75.56
2010-11-01	74.92
2010-12-01	75.90
2011-01-01	73.11
2011-02-01	73.62
2011-03-01	74.82
2011-04-01	74.31
2011-05-01	74.33
2011-06-01	74.64
2011-07-01	74.31
2011-08-01	74.45
2011-09-01	75.56
2011-10-01	77.79
2011-11-01	76.67
2011-12-01	77.09
2012-01-01	74.53
2012-02-01	74.87
2012-03-01	75.57
2012-04-01	74.48
2012-05-01	75.63
2012-06-01	76.32
2012-07-01	75.06
2012-08-01	76.60
2012-09-01	74.75
2012-10-01	77.00
2012-11-01	76.20
2012-12-01	76.45
2013-01-01	74.51
2013-02-01	74.49
2013-03-01	74.18
2013-04-01	74.02
2013-05-01	76.10
2013-06-01	74.96
2013-07-01	75.34
2013-08-01	75.81
2013-09-01	75.55
2013-10-01	77.21
2013-11-01	76.21
2013-12-01	77.48
2014-01-01	75.07
2014-02-01	74.92
2014-03-01	74.69
2014-04-01	75.12
2014-05-01	76.13
2014-06-01	75.59
2014-07-01	74.94
2014-08-01	75.95
2014-09-01	76.40
2014-10-01	77.85
2014-11-01	77.68
2014-12-01	76.56
2015-01-01	74.93
2015-02-01	75.75
2015-03-01	75.47
2015-04-01	75.64
2015-05-01	75.86
2015-06-01	76.13
2015-07-01	75.90
2015-08-01	76.03
2015-09-01	74.92
2015-10-01	77.48
2015-11-01	77.78
2015-12-01	77.44
2016-01-01	74.60
2016-02-01	75.12
2016-03-01	73.69
2016-04-01	76.00
2016-05-01	74.68
2016-06-01	75.71
2016-07-01	74.10
2016-08-01	75.90
2016-09-01	75.04
2016-10-01	76.53
2016-11-01	76.60
2016-12-01	76.61
2017-01-01	74.02
2017-02-01	74.61
2017-03-01	74.73
2017-04-01	74.82
2017-05-01	74.94
2017-06-01	75.89
2017-07-01	74.99
2017-08-01	75.32
2017-09-01	74.72
2017-10-01	75.49
2017-11-01	76.30
2017-12-01	75.43
2018-01-01	73.10
2018-02-01	73.56
2018-03-01	74.38
2018-04-01	74.11
2018-05-01	74.61
2018-06-01	75.43
2018-07-01	74.64