Month	Percent
2012-01-01	38.3
2012-02-01	37.9
2012-03-01	37.6
2012-04-01	38.1
2012-05-01	37.4
2012-06-01	37.5
2012-07-01	36.5
2012-08-01	36.4
2012-09-01	36.8
2012-10-01	36.9
2012-11-01	37.3
2012-12-01	37
2013-01-01	36.9
2013-02-01	36.9
2013-03-01	37.2
2013-04-01	36.8
2013-05-01	36.9
2013-06-01	37
2013-07-01	36.4
2013-08-01	37.3
2013-09-01	37.2
2013-10-01	37.5
2013-11-01	37.6
2013-12-01	37
2014-01-01	36.4
2014-02-01	36.3
2014-03-01	36.2
2014-04-01	36.5
2014-05-01	35.7
2014-06-01	35.6
2014-07-01	35.5
2014-08-01	35.9
2014-09-01	35.6
2014-10-01	36.4
2014-11-01	36.2
2014-12-01	35.9
2015-01-01	36.4
2015-02-01	37
2015-03-01	36.6
2015-04-01	36.7
2015-05-01	36.4
2015-06-01	36.1
2015-07-01	36.0
2015-08-01	35.6
2015-09-01	36.0
2015-10-01	36.6
2015-11-01	35.5
2015-12-01	35.0
2016-01-01	35.8
2016-02-01	35.9
2016-03-01	36.0
2016-04-01	35.8
2016-05-01	36.1
2016-06-01	35.7
2016-07-01	35.4
2016-08-01	35.8
2016-09-01	35.8
2016-10-01	36.2
2016-11-01	35.5
2016-12-01	35.5
2017-01-01	35.3
2017-02-01	36.1
2017-03-01	36.1
2017-04-01	36.4
2017-05-01	35.9
2017-06-01	36.2
2017-07-01	36.0
2017-08-01	36.2
2017-09-01	36.1
2017-10-01	36.0
2017-11-01	35.9
2017-12-01	35.7
2018-01-01	36.0
2018-02-01	35.8
2018-03-01	36.3
2018-04-01	35.9
2018-05-01	35.3
2018-06-01	35.1
2018-07-01	35.0
2018-08-01	34.9
2018-09-01	35.5