Quarterly Percent
2000-04-01 77.1
2001-04-01 76.9
2002-04-01 76.8
2003-04-01 76.9
2004-04-01 76.9
2005-01-01 77
2005-04-01 77.3
2005-07-01 77.6
2005-10-01 77.3
2006-01-01 77.1
2006-04-01 77.5
2006-07-01 78.1
2006-10-01 77.6
2007-01-01 77.2
2007-04-01 77.5
2007-07-01 78.1
2007-10-01 77.6
2008-01-01 77.5
2008-04-01 77.9
2008-07-01 78.2
2008-10-01 77.8
2009-01-01 77.5
2009-04-01 77.7
2009-07-01 77.9
2009-10-01 77.4
2010-01-01 77.4
2010-04-01 77.7
2010-07-01 77.9
2010-10-01 77.5
2011-01-01 77.2
2011-04-01 77.4
2011-07-01 77.7
2011-10-01 77.6
2012-01-01 77.3
2012-04-01 77.8
2012-07-01 78.2
2012-10-01 78.0
2013-01-01 77.6
2013-04-01 78.0
2013-07-01 78.3
2013-10-01 78.0
2014-01-01 77.8
2014-04-01 78.0
2014-07-01 78.4
2014-10-01 78.2
2015-01-01 77.9
2015-04-01 78.1
2015-07-01 78.6
2015-10-01 78.5
2016-01-01 78.1
2016-04-01 78.5
2016-07-01 78.9
2016-10-01 78.6
2017-01-01 78.3
2017-04-01 78.9
2017-07-01 79.2
2017-10-01 79.0
2018-01-01 78.7
2018-04-01 79.2