Month	Percent
2004-01-01	27.4
2004-02-01	27.4
2004-03-01	27.4
2004-04-01	28.9
2004-05-01	28.9
2004-06-01	28.9
2004-07-01	24.4
2004-08-01	24.4
2004-09-01	24.4
2004-10-01	28.3
2004-11-01	28.3
2004-12-01	28.3
2005-01-01	28.6
2005-02-01	28.6
2005-03-01	28.6
2005-04-01	25.6
2005-05-01	25.6
2005-06-01	25.6
2005-07-01	28.4
2005-08-01	28.4
2005-09-01	28.4
2005-10-01	27.7
2005-11-01	27.7
2005-12-01	27.7
2006-01-01	28.3
2006-02-01	28.3
2006-03-01	28.3
2006-04-01	24.9
2006-05-01	24.9
2006-06-01	24.9
2006-07-01	21.8
2006-08-01	21.8
2006-09-01	21.8
2006-10-01	26.4
2006-11-01	26.4
2006-12-01	26.4
2007-01-01	23.5
2007-02-01	23.5
2007-03-01	23.5
2007-04-01	20.8
2007-05-01	20.8
2007-06-01	20.8
2007-07-01	22.3
2007-08-01	22.3
2007-09-01	22.3
2007-10-01	26.6
2007-11-01	26.6
2007-12-01	26.6
2008-01-01	24.8
2008-02-01	24.8
2008-03-01	24.8
2008-04-01	25
2008-05-01	25
2008-06-01	25
2008-07-01	21.9
2008-08-01	21.9
2008-09-01	21.9
2008-10-01	27
2008-11-01	27
2008-12-01	27
2009-01-01	30.2
2009-02-01	30.2
2009-03-01	30.2
2009-04-01	27.5
2009-05-01	27.5
2009-06-01	27.5
2009-07-01	25.7
2009-08-01	25.7
2009-09-01	25.7
2009-10-01	30.5
2009-11-01	30.5
2009-12-01	30.5
2010-01-01	29.7
2010-02-01	29.7
2010-03-01	29.7
2010-04-01	28.7
2010-05-01	28.7
2010-06-01	28.7
2010-07-01	26.2
2010-08-01	26.2
2010-09-01	26.2
2010-10-01	32.7
2010-11-01	32.7
2010-12-01	32.7
2011-01-01	32.9
2011-02-01	32.9
2011-03-01	32.9
2011-04-01	32.5
2011-05-01	32.5
2011-06-01	32.5
2011-07-01	28.2
2011-08-01	28.2
2011-09-01	28.2
2011-10-01	34.5
2011-11-01	34.5
2011-12-01	34.5
2012-01-01	39.2
2012-02-01	39.2
2012-03-01	39.2
2012-04-01	35.6
2012-05-01	35.6
2012-06-01	35.6
2012-07-01	33.9
2012-08-01	33.9
2012-09-01	33.9
2012-10-01	41.4
2012-11-01	41.4
2012-12-01	41.4
2013-01-01	42.6
2013-02-01	42.6
2013-03-01	42.6
2013-04-01	37.1
2013-05-01	37.1
2013-06-01	37.1
2013-07-01	37.8
2013-08-01	37.8
2013-09-01	37.8
2013-10-01	47.9
2013-11-01	47.9
2013-12-01	47.9
2014-01-01	48.5
2014-02-01	48.5
2014-03-01	48.5
2014-04-01	41.5
2014-05-01	41.5
2014-06-01	41.5
2014-07-01	41.1
2014-08-01	41.1
2014-09-01	41.1
2014-10-01	47.5
2014-11-01	47.5
2014-12-01	47.5
2015-01-01	48.9
2015-02-01	48.9
2015-03-01	48.9
2015-04-01	43.0
2015-05-01	43.0
2015-06-01	43.0
2015-07-01	37.2
2015-08-01	37.2
2015-09-01	37.2
2015-10-01	40.9
2015-11-01	40.9
2015-12-01	40.9
2016-01-01	41.0
2016-02-01	41.0
2016-03-01	41.0
2016-04-01	36.1
2016-05-01	36.1
2016-06-01	36.1
2016-07-01	37.6
2016-08-01	37.6
2016-09-01	37.6
2016-10-01	43.8
2016-11-01	43.8
2016-12-01	43.8
2017-01-01	39.4
2017-02-01	39.4
2017-03-01	39.4
2017-04-01	35.7
2017-05-01	35.7
2017-06-01	35.7
2017-07-01	35.2
2017-08-01	35.2
2017-09-01	35.2
2017-10-01	39.0
2017-11-01	39.0
2017-12-01	39.0
2018-01-01	37.2
2018-02-01	37.2
2018-03-01	37.2
2018-04-01	34.1
2018-05-01	34.1
2018-06-01	34.1