Month	Percent
2007-01-01	67.58
2007-02-01	71.40
2007-03-01	71.45
2007-04-01	72.25
2007-05-01	71.88
2007-06-01	71.66
2007-07-01	71.89
2007-08-01	72.31
2007-09-01	72.79
2007-10-01	74.72
2007-11-01	74.42
2007-12-01	71.95
2008-01-01	70.35
2008-02-01	73.02
2008-03-01	73.11
2008-04-01	73.45
2008-05-01	73.35
2008-06-01	71.30
2008-07-01	72.25
2008-08-01	72.22
2008-09-01	73.08
2008-10-01	73.09
2008-11-01	72.12
2008-12-01	72.46
2009-01-01	70.10
2009-02-01	72.39
2009-03-01	73.20
2009-04-01	74.56
2009-05-01	75.03
2009-06-01	74.17
2009-07-01	73.97
2009-08-01	74.10
2009-09-01	73.91
2009-10-01	75.88
2009-11-01	76.06
2009-12-01	74.90
2010-01-01	72.36
2010-02-01	74.33
2010-03-01	74.97
2010-04-01	75.81
2010-05-01	75.12
2010-06-01	75.50
2010-07-01	74.88
2010-08-01	75.91
2010-09-01	76.67
2010-10-01	77.28
2010-11-01	76.86
2010-12-01	75.68
2011-01-01	73.66
2011-02-01	74.25
2011-03-01	75.95
2011-04-01	76.33
2011-05-01	76.36
2011-06-01	76.66
2011-07-01	76.08
2011-08-01	77.18
2011-09-01	77.55
2011-10-01	79.17
2011-11-01	78.27
2011-12-01	77.28
2012-01-01	75.25
2012-02-01	75.79
2012-03-01	77.39
2012-04-01	77.22
2012-05-01	77.39
2012-06-01	78.24
2012-07-01	76.77
2012-08-01	78.01
2012-09-01	77.39
2012-10-01	79.25
2012-11-01	77.79
2012-12-01	77.50
2013-01-01	74.76
2013-02-01	75.05
2013-03-01	76.70
2013-04-01	77.03
2013-05-01	78.57
2013-06-01	78.17
2013-07-01	78.43
2013-08-01	78.72
2013-09-01	78.44
2013-10-01	80.07
2013-11-01	78.01
2013-12-01	77.80
2014-01-01	75.98
2014-02-01	76.40
2014-03-01	77.50
2014-04-01	78.50
2014-05-01	78.31
2014-06-01	78.52
2014-07-01	77.71
2014-08-01	78.34
2014-09-01	78.83
2014-10-01	80.03
2014-11-01	80.26
2014-12-01	78.02
2015-01-01	75.57
2015-02-01	77.31
2015-03-01	78.54
2015-04-01	78.51
2015-05-01	78.93
2015-06-01	78.91
2015-07-01	78.22
2015-08-01	79.52
2015-09-01	79.36
2015-10-01	80.21
2015-11-01	80.26
2015-12-01	78.40
2016-01-01	75.36
2016-02-01	77.61
2016-03-01	76.67
2016-04-01	79.06
2016-05-01	78.73
2016-06-01	78.81
2016-07-01	77.06
2016-08-01	78.13
2016-09-01	78.83
2016-10-01	80.28
2016-11-01	80.32
2016-12-01	78.57
2017-01-01	75.09
2017-02-01	76.89
2017-03-01	77.10
2017-04-01	78.86
2017-05-01	77.41
2017-06-01	79.22
2017-07-01	77.55
2017-08-01	78.64
2017-09-01	78.81
2017-10-01	79.56
2017-11-01	78.89
2017-12-01	77.78
2018-01-01	75.17
2018-02-01	75.25
2018-03-01	77.63
2018-04-01	78.42
2018-05-01	77.10
2018-06-01	77.84
2018-07-01	77.03