Quarterly Percent
1999-04-01 30.8
2000-01-01 31.9
2000-04-01 30.8
2000-07-01 30.4
2000-10-01 31.8
2001-01-01 31.7
2001-04-01 30.5
2001-07-01 30.4
2001-10-01 30.7
2002-01-01 30.5
2002-04-01 29.5
2002-07-01 30.1
2002-10-01 31.4
2003-01-01 31.6
2003-04-01 30.9
2003-07-01 30.5
2003-10-01 31.6
2004-01-01 32.3
2004-04-01 30.9
2004-07-01 30.7
2004-10-01 31.7
2005-01-01 32.2
2005-04-01 31.5
2005-07-01 30.7
2005-10-01 31.6
2006-01-01 32.3
2006-04-01 31.4
2006-07-01 31.3
2006-10-01 31.9
2007-01-01 31.5
2007-04-01 30.6
2007-07-01 30.3
2007-10-01 30
2008-01-01 29.6
2008-04-01 29.1
2008-07-01 29.2
2008-10-01 29.7
2009-01-01 29.8
2009-04-01 29.7
2009-07-01 30.4
2009-10-01 31.1
2010-01-01 31.3
2010-04-01 30.9
2010-07-01 31.3
2010-10-01 31.8
2011-01-01 31.5
2011-04-01 31
2011-07-01 31.2
2011-10-01 31.8
2012-01-01 31.8
2012-04-01 31
2012-07-01 31.4
2012-10-01 32
2013-01-01 31.9
2013-04-01 31.7
2013-07-01 31.3
2013-10-01 31.8
2014-01-01 37.5
2014-04-01 37.4
2014-07-01 36.9
2014-10-01 37
2015-01-01 38.3
2015-04-01 37.1
2015-07-01 37.4
2015-10-01 38.2
2016-01-01 37.9
2016-04-01 38.4
2016-07-01 36.9
2016-10-01 38.6
2017-01-01 38.8
2017-04-01 38.1
2017-07-01 38.2
2017-10-01 39.1
2018-01-01 39.0
2018-04-01 38.4