Quarterly Percent
2000-04-01 64.0
2001-04-01 65.1
2002-04-01 65.9
2003-04-01 66.9
2004-04-01 67.5
2005-01-01 67.9
2005-04-01 68.3
2005-07-01 68.1
2005-10-01 68.4
2006-01-01 68.7
2006-04-01 69.7
2006-07-01 69.6
2006-10-01 70.0
2007-01-01 70.0
2007-04-01 70.5
2007-07-01 70.7
2007-10-01 71.2
2008-01-01 71.1
2008-04-01 71.5
2008-07-01 71.5
2008-10-01 71.6
2009-01-01 70.6
2009-04-01 70.9
2009-07-01 70.6
2009-10-01 70.9
2010-01-01 70.3
2010-04-01 70.8
2010-07-01 70.5
2010-10-01 70.9
2011-01-01 70.5
2011-04-01 71.1
2011-07-01 70.5
2011-10-01 70.7
2012-01-01 70.3
2012-04-01 70.7
2012-07-01 70.3
2012-10-01 70.3
2013-01-01 69.8
2013-04-01 70.2
2013-07-01 70.1
2013-10-01 70.1
2014-01-01 70.0
2014-04-01 70.5
2014-07-01 70.2
2014-10-01 70.4
2015-01-01 70.3
2015-04-01 70.9
2015-07-01 70.9
2015-10-01 71.1
2016-01-01 71.0
2016-04-01 71.5
2016-07-01 71.7
2016-10-01 72.0
2017-01-01 71.5
2017-04-01 72.3
2017-07-01 72.4
2017-10-01 72.7
2018-01-01 72.4
2018-04-01 73.3