Month	Percent
2012-01-01	76.2
2012-02-01	76.8
2012-03-01	77.5
2012-04-01	76.3
2012-05-01	76.9
2012-06-01	76.8
2012-07-01	75.8
2012-08-01	77.5
2012-09-01	77.6
2012-10-01	77.1
2012-11-01	76.9
2012-12-01	77.2
2013-01-01	77.3
2013-02-01	77.6
2013-03-01	76.9
2013-04-01	77.6
2013-05-01	77.1
2013-06-01	77.4
2013-07-01	76.3
2013-08-01	76.1
2013-09-01	77
2013-10-01	76.8
2013-11-01	76.8
2013-12-01	77.2
2014-01-01	77.9
2014-02-01	78.6
2014-03-01	78.7
2014-04-01	79
2014-05-01	79.6
2014-06-01	78.2
2014-07-01	78.1
2014-08-01	77.2
2014-09-01	78.8
2014-10-01	77.6
2014-11-01	78.2
2014-12-01	78.6
2015-01-01	78.1
2015-02-01	77.5
2015-03-01	77.9
2015-04-01	78.6
2015-05-01	77.7
2015-06-01	77.7
2015-07-01	77.3
2015-08-01	77.6
2015-09-01	78.9
2015-10-01	78.5
2015-11-01	78.0
2015-12-01	78.8
2016-01-01	78.0
2016-02-01	78.0
2016-03-01	78.1
2016-04-01	78.7
2016-05-01	78.6
2016-06-01	78.6
2016-07-01	78.3
2016-08-01	78.3
2016-09-01	79.1
2016-10-01	78.7
2016-11-01	78.9
2016-12-01	79.2
2017-01-01	79.1
2017-02-01	78.5
2017-03-01	78.6
2017-04-01	78.6
2017-05-01	79.0
2017-06-01	78.5
2017-07-01	77.9
2017-08-01	77.6
2017-09-01	79.2
2017-10-01	79.6
2017-11-01	79.1
2017-12-01	79.6
2018-01-01	79.4
2018-02-01	79.7
2018-03-01	78.9
2018-04-01	79.7
2018-05-01	80.3
2018-06-01	80.0
2018-07-01	79.5
2018-08-01	79.4
2018-09-01	79.7