Quarterly Percent
1999-04-01 69.9
2000-04-01 71.1
2001-04-01 71.7
2002-04-01 71.8
2003-04-01 71.6
2004-04-01 71.1
2005-01-01 71
2005-04-01 70.9
2005-07-01 71
2005-10-01 71.1
2006-01-01 72
2006-04-01 72.9
2006-07-01 73.1
2006-10-01 72.7
2007-01-01 73.6
2007-04-01 73.7
2007-07-01 74.3
2007-10-01 74.5
2008-01-01 74
2008-04-01 74.2
2008-07-01 75.1
2008-10-01 75.6
2009-01-01 74.5
2009-04-01 75.3
2009-07-01 75.3
2009-10-01 76.5
2010-01-01 75.4
2010-04-01 76.5
2010-07-01 76.5
2010-10-01 77.0
2011-01-01 77
2011-04-01 78
2011-07-01 78.1
2011-10-01 78.5
2012-01-01 77.8
2012-04-01 78.3
2012-07-01 78.3
2012-10-01 78.6
2013-01-01 78.3
2013-04-01 78.9
2013-07-01 78.9
2013-10-01 78.4
2014-01-01 78.4
2014-04-01 79.2
2014-07-01 79
2014-10-01 78.8
2015-01-01 79.1
2015-04-01 79.4
2015-07-01 79.3
2015-10-01 79.1
2016-01-01 79.2
2016-04-01 79.3
2016-07-01 79.9
2016-10-01 80.4
2017-01-01 79.6
2017-04-01 79.7
2017-07-01 80.1
2017-10-01 80.5
2018-01-01 80.4
2018-04-01 80.3