Quarterly Percent
1998-04-01 61.9
1999-04-01 62.3
2000-04-01 62.1
2001-04-01 63.2
2002-04-01 64
2003-04-01 63.3
2004-04-01 62.8
2005-04-01 62.9
2006-04-01 63.7
2007-04-01 63.9
2008-04-01 65.7
2009-04-01 65.7
2010-01-01 63.6
2010-04-01 63.5
2010-07-01 63.5
2010-10-01 64.0
2011-01-01 64.4
2011-04-01 64.9
2011-07-01 64.1
2011-10-01 65.1
2012-01-01 65.0
2012-04-01 64.8
2012-07-01 65.2
2012-10-01 64.8
2013-01-01 64.8
2013-04-01 65.0
2013-07-01 65.2
2013-10-01 65.7
2014-01-01 65.1
2014-04-01 65.7
2014-07-01 65.6
2014-10-01 67.3
2015-01-01 66.8
2015-04-01 66.3
2015-07-01 65.7
2015-10-01 66.6
2016-01-01 67.2
2016-04-01 66.9
2016-07-01 66.6
2016-10-01 67.2
2017-01-01 66.9
2017-04-01 66.5
2017-07-01 66.4
2017-10-01 67.0
2018-01-01 66.8
2018-04-01 66.8
