Month	Percent
1995-01-01	57.2
1995-02-01	57.3
1995-03-01	57.5
1995-04-01	57.6
1995-05-01	59.1
1995-06-01	60.1
1995-07-01	60.3
1995-08-01	60.2
1995-09-01	59.2
1995-10-01	59
1995-11-01	58.3
1995-12-01	58.1
1996-01-01	57
1996-02-01	57.2
1996-03-01	57.2
1996-04-01	57.6
1996-05-01	59
1996-06-01	59.8
1996-07-01	60.2
1996-08-01	60.2
1996-09-01	58.8
1996-10-01	58.5
1996-11-01	58.1
1996-12-01	57.9
1997-01-01	56.9
1997-02-01	57.1
1997-03-01	57.4
1997-04-01	57.6
1997-05-01	59.2
1997-06-01	60.4
1997-07-01	60.7
1997-08-01	60.9
1997-09-01	59.7
1997-10-01	59.6
1997-11-01	59.2
1997-12-01	59
1998-01-01	57.6
1998-02-01	58.1
1998-03-01	58.3
1998-04-01	58.7
1998-05-01	60
1998-06-01	61
1998-07-01	61.4
1998-08-01	61.4
1998-09-01	60.4
1998-10-01	60.3
1998-11-01	60
1998-12-01	59.7
1999-01-01	58.7
1999-02-01	58.9
1999-03-01	59
1999-04-01	59.5
1999-05-01	60.9
1999-06-01	61.8
1999-07-01	62.2
1999-08-01	62
1999-09-01	61
1999-10-01	61.1
1999-11-01	60.8
1999-12-01	60.7
2000-01-01	59.6
2000-02-01	59.9
2000-03-01	60.1
2000-04-01	60.4
2000-05-01	61.9
2000-06-01	62.5
2000-07-01	62.7
2000-08-01	62.6
2000-09-01	61.6
2000-10-01	61.6
2000-11-01	61.3
2000-12-01	61.1
2001-01-01	59.9
2001-02-01	60
2001-03-01	60.1
2001-04-01	60.5
2001-05-01	61.9
2001-06-01	62.4
2001-07-01	62.6
2001-08-01	62.4
2001-09-01	61.3
2001-10-01	61.3
2001-11-01	60.9
2001-12-01	60.5
2002-01-01	59.6
2002-02-01	59.8
2002-03-01	60.2
2002-04-01	60.6
2002-05-01	62.1
2002-06-01	63
2002-07-01	63.3
2002-08-01	63.4
2002-09-01	62.4
2002-10-01	62.3
2002-11-01	62.1
2002-12-01	62
2003-01-01	60.9
2003-02-01	61.3
2003-03-01	61.4
2003-04-01	61.5
2003-05-01	62.7
2003-06-01	63.8
2003-07-01	63.8
2003-08-01	63.6
2003-09-01	62.6
2003-10-01	62.8
2003-11-01	62.6
2003-12-01	62.4
2004-01-01	61.2
2004-02-01	61.4
2004-03-01	61.4
2004-04-01	61.8
2004-05-01	63.2
2004-06-01	64.1
2004-07-01	64.1
2004-08-01	63.7
2004-09-01	62.9
2004-10-01	62.9
2004-11-01	62.6
2004-12-01	62.4
2005-01-01	61.2
2005-02-01	61.5
2005-03-01	61.4
2005-04-01	61.7
2005-05-01	63.2
2005-06-01	63.9
2005-07-01	64
2005-08-01	63.8
2005-09-01	62.7
2005-10-01	62.9
2005-11-01	62.6
2005-12-01	62.3
2006-01-01	61.1
2006-02-01	61.4
2006-03-01	61.6
2006-04-01	61.9
2006-05-01	63.6
2006-06-01	64.2
2006-07-01	64.2
2006-08-01	63.9
2006-09-01	62.9
2006-10-01	63
2006-11-01	62.8
2006-12-01	62.7
2007-01-01	61.8
2007-02-01	62.1
2007-03-01	62.3
2007-04-01	62.5
2007-05-01	63.9
2007-06-01	64.6
2007-07-01	64.6
2007-08-01	64.5
2007-09-01	63.6
2007-10-01	63.8
2007-11-01	63.6
2007-12-01	63.2
2008-01-01	62.3
2008-02-01	62.6
2008-03-01	62.6
2008-04-01	62.8
2008-05-01	64.1
2008-06-01	64.8
2008-07-01	64.5
2008-08-01	64.3
2008-09-01	63.6
2008-10-01	63.7
2008-11-01	63
2008-12-01	62.6
2009-01-01	61
2009-02-01	60.9
2009-03-01	60.7
2009-04-01	60.9
2009-05-01	62
2009-06-01	62.7
2009-07-01	62.3
2009-08-01	62.2
2009-09-01	61.5
2009-10-01	61.4
2009-11-01	61.5
2009-12-01	61.1
2010-01-01	60.2
2010-02-01	60.3
2010-03-01	60.2
2010-04-01	60.9
2010-05-01	62.1
2010-06-01	63.1
2010-07-01	62.7
2010-08-01	62.5
2010-09-01	61.7
2010-10-01	61.7
2010-11-01	61.5
2010-12-01	61.3
2011-01-01	60.5
2011-02-01	60.6
2011-03-01	60.6
2011-04-01	61.1
2011-05-01	62.4
2011-06-01	63.1
2011-07-01	62.8
2011-08-01	62.7
2011-09-01	62
2011-10-01	61.8
2011-11-01	61.5
2011-12-01	61.2
2012-01-01	60.2
2012-02-01	60.3
2012-03-01	60.5
2012-04-01	61.3
2012-05-01	62.4
2012-06-01	63
2012-07-01	62.5
2012-08-01	62.6
2012-09-01	62
2012-10-01	61.9
2012-11-01	61.7
2012-12-01	61.5
2013-01-01	60.7
2013-02-01	60.9
2013-03-01	60.7
2013-04-01	61.1
2013-05-01	62.5
2013-06-01	63
2013-07-01	62.7
2013-08-01	62.7
2013-09-01	62.1
2013-10-01	61.9
2013-11-01	61.7
2013-12-01	61.3
2014-01-01	60.4
2014-02-01	60.5
2014-03-01	60.6
2014-04-01	60.8
2014-05-01	61.9
2014-06-01	62.6
2014-07-01	62.3
2014-08-01	62.1
2014-09-01	61.7
2014-10-01	61.7
2014-11-01	61.4
2014-12-01	61
2015-01-01	60.2
2015-02-01	60.3
2015-03-01	60.2
2015-04-01	60.6
2015-05-01	62.0
2015-06-01	62.6
2015-07-01	62.3
2015-08-01	62.2
2015-09-01	61.6
2015-10-01	61.6
2015-11-01	61.2
2015-12-01	60.9
2016-01-01	60.0
2016-02-01	60.1
2016-03-01	60.1
2016-04-01	60.4
2016-05-01	61.8
2016-06-01	62.3
2016-07-01	61.8
2016-08-01	61.7
2016-09-01	61.4
2016-10-01	61.5
2016-11-01	61.2
2016-12-01	61.0
2017-01-01	60.4
2017-02-01	60.5
2017-03-01	60.5
2017-04-01	60.7
2017-05-01	62.2
2017-06-01	62.8
2017-07-01	62.5
2017-08-01	62.3
2017-09-01	61.8
2017-10-01	61.9
2017-11-01	61.8
2017-12-01	61.7
2018-01-01	60.6
2018-02-01	60.7
2018-03-01	60.7
2018-04-01	61.0
2018-05-01	62.1
2018-06-01	62.7
2018-07-01	62.5
2018-08-01	62.1
2018-09-01	61.7
2018-10-01	61.7