Quarterly Percent
1999-01-01 48.5
1999-04-01 48.4
1999-07-01 47.9
1999-10-01 47.6
2000-01-01 47.5
2000-04-01 47.2
2000-07-01 46.8
2000-10-01 46.7
2001-01-01 48.1
2001-04-01 47.9
2001-07-01 47.4
2001-10-01 47.3
2002-01-01 46.7
2002-04-01 46.2
2002-07-01 45.8
2002-10-01 45.7
2003-01-01 45.4
2003-04-01 45.1
2003-07-01 44.5
2003-10-01 44.4
2004-01-01 44.4
2004-04-01 44.1
2004-07-01 43.8
2004-10-01 43.6
2005-01-01 43.3
2005-04-01 42.8
2005-07-01 42.8
2005-10-01 42.6
2006-01-01 42.4
2006-04-01 42.1
2006-07-01 41.9
2006-10-01 41.8
2007-01-01 41.8
2007-04-01 41.5
2007-07-01 41.2
2007-10-01 41.2
2008-01-01 41
2008-04-01 40.6
2008-07-01 40.5
2008-10-01 40.4
2009-01-01 40.3
2009-04-01 40.4
2009-07-01 40.6
2009-10-01 40.7
2010-01-01 40.6
2010-04-01 40.3
2010-07-01 40.3
2010-10-01 40.4
2011-01-01 40.5
2011-04-01 40.2
2011-07-01 40.2
2011-10-01 40.4
2012-01-01 40.3
2012-04-01 40.1
2012-07-01 40.1
2012-10-01 40.4
2013-01-01 40.5
2013-04-01 40.6
2013-07-01 40.6
2013-10-01 40.8
2014-01-01 41.2
2014-04-01 41
2014-07-01 41.1
2014-10-01 40.9
2015-01-01 41.3
2015-04-01 40.9
2015-07-01 41.2
2015-10-01 41.3
2016-01-01 41.4
2016-04-01 41.3
2016-07-01 41.4
2016-10-01 41.8
2017-01-01 41.9
2017-04-01 41.9
2017-07-01 41.8
2017-10-01 41.9
2018-01-01 42.3
2018-04-01 41.9
2018-07-01 42.0