Quarterly Percent
1999-04-01 70.6
2000-01-01 72.7
2000-04-01 72.7
2000-07-01 71.4
2000-10-01 72.3
2001-01-01 71.9
2001-04-01 72.1
2001-07-01 71.7
2001-10-01 70.8
2002-01-01 71.4
2002-04-01 71.6
2002-07-01 71.3
2002-10-01 72.3
2003-01-01 72.3
2003-04-01 71.6
2003-07-01 73.2
2003-10-01 73
2004-01-01 72
2004-04-01 72.2
2004-07-01 72.3
2004-10-01 72.2
2005-01-01 72
2005-04-01 71.7
2005-07-01 71.9
2005-10-01 72.9
2006-01-01 73.4
2006-04-01 74.4
2006-07-01 73.7
2006-10-01 74.5
2007-01-01 74.2
2007-04-01 74.3
2007-07-01 74.6
2007-10-01 75.4
2008-01-01 75.4
2008-04-01 75
2008-07-01 74.9
2008-10-01 74.7
2009-01-01 74
2009-04-01 74.5
2009-07-01 73.3
2009-10-01 73.8
2010-01-01 73.5
2010-04-01 74
2010-07-01 73.5
2010-10-01 73.1
2011-01-01 72.5
2011-04-01 73.1
2011-07-01 74.9
2011-10-01 75.1
2012-01-01 75.5
2012-04-01 75.9
2012-07-01 76
2012-10-01 76.3
2013-01-01 75.7
2013-04-01 77
2013-07-01 76.2
2013-10-01 74.9
2014-01-01 76
2014-04-01 76.9
2014-07-01 77.1
2014-10-01 77.9
2015-01-01 77.1
2015-04-01 76.7
2015-07-01 76.9
2015-10-01 76.9
2016-01-01 78.0
2016-04-01 78.0
2016-07-01 77.4
2016-10-01 77.5
2017-01-01 77.0
2017-04-01 77.1
2017-07-01 76.9
2017-10-01 76.9
2018-01-01 78.3
2018-04-01 77.2