Quarterly Percent
1999-01-01 43.7
1999-04-01 43.4
1999-07-01 43.3
1999-10-01 43.1
2000-01-01 43.1
2000-04-01 42.6
2000-07-01 42.6
2000-10-01 43.1
2001-01-01 43.1
2001-04-01 43.1
2001-07-01 43.1
2001-10-01 43
2002-01-01 42.3
2002-04-01 42.5
2002-07-01 43
2002-10-01 43.1
2003-01-01 43.2
2003-04-01 43.6
2003-07-01 43.7
2003-10-01 43.5
2004-01-01 42.3
2004-04-01 42.3
2004-07-01 42.6
2004-10-01 42.7
2005-01-01 42.4
2005-04-01 42.4
2005-07-01 42.4
2005-10-01 42.8
2006-01-01 42.3
2006-04-01 43
2006-07-01 43.7
2006-10-01 44
2007-01-01 44.1
2007-04-01 44.1
2007-07-01 43.9
2007-10-01 44.7
2008-01-01 44.8
2008-04-01 45.1
2008-07-01 46.1
2008-10-01 45.8
2009-01-01 44.3
2009-04-01 43.9
2009-07-01 43.8
2009-10-01 43.4
2010-01-01 42.9
2010-04-01 43.1
2010-07-01 43.7
2010-10-01 43.8
2011-01-01 43.1
2011-04-01 43.4
2011-07-01 43.6
2011-10-01 43.2
2012-01-01 43.3
2012-04-01 43.5
2012-07-01 43.5
2012-10-01 42.9
2013-01-01 43.4
2013-04-01 43.4
2013-07-01 43.7
2013-10-01 44
2014-01-01 43.9
2014-04-01 43.9
2014-07-01 44.1
2014-10-01 44.5
2015-01-01 44.7
2015-04-01 45.0
2015-07-01 45.4
2015-10-01 45.9
2016-01-01 46.3
2016-04-01 46.7
2016-07-01 47.1
2016-10-01 47.5
2017-01-01 47.9
2017-04-01 48.1
2017-07-01 48.6
2017-10-01 48.4
2018-01-01 48.4
2018-04-01 48.2