Month	Percent
2012-01-01	54.1
2012-02-01	53.6
2012-03-01	53.3
2012-04-01	53.4
2012-05-01	52.6
2012-06-01	53.4
2012-07-01	45.8
2012-08-01	48.3
2012-09-01	49.7
2012-10-01	50.2
2012-11-01	50.7
2012-12-01	51.9
2013-01-01	51.3
2013-02-01	52.5
2013-03-01	52.2
2013-04-01	52.7
2013-05-01	52
2013-06-01	52.4
2013-07-01	48.1
2013-08-01	48.9
2013-09-01	52.1
2013-10-01	53.6
2013-11-01	53.5
2013-12-01	52.6
2014-01-01	51.5
2014-02-01	51.6
2014-03-01	51.8
2014-04-01	54.1
2014-05-01	52.1
2014-06-01	49.9
2014-07-01	48.4
2014-08-01	48.8
2014-09-01	50.4
2014-10-01	51.5
2014-11-01	53.9
2014-12-01	53.4
2015-01-01	53.3
2015-02-01	54.4
2015-03-01	53.1
2015-04-01	55.0
2015-05-01	52.8
2015-06-01	51.8
2015-07-01	49.1
2015-08-01	49.5
2015-09-01	52.2
2015-10-01	54.8
2015-11-01	48.9
2015-12-01	49.5
2016-01-01	51.5
2016-02-01	52.9
2016-03-01	52.5
2016-04-01	52.6
2016-05-01	53.4
2016-06-01	51.3
2016-07-01	48.5
2016-08-01	51.9
2016-09-01	51.6
2016-10-01	53.5
2016-11-01	52.0
2016-12-01	53.0
2017-01-01	51.4
2017-02-01	53.0
2017-03-01	52.3
2017-04-01	52.6
2017-05-01	52.0
2017-06-01	51.8
2017-07-01	49.3
2017-08-01	49.2
2017-09-01	53.1
2017-10-01	53.2
2017-11-01	52.9
2017-12-01	53.0
2018-01-01	52.8
2018-02-01	52.8
2018-03-01	53.2
2018-04-01	54.0
2018-05-01	54.3
2018-06-01	53.7
2018-07-01	50.3
2018-08-01	50.9
2018-09-01	52.2