Quarterly Percent
1998-01-01 70.8
1998-04-01 70.6
1998-07-01 70.4
1998-10-01 70.7
1999-01-01 70.8
1999-04-01 70.9
1999-07-01 70.9
1999-10-01 71.0
2000-01-01 71.4
2000-04-01 71.1
2000-07-01 71.7
2000-10-01 71.6
2001-01-01 72.0
2001-04-01 71.8
2001-07-01 72.1
2001-10-01 72.3
2002-01-01 72.4
2002-04-01 72.6
2002-07-01 72.9
2002-10-01 72.7
2003-01-01 72.9
2003-04-01 72.8
2003-07-01 72.8
2003-10-01 72.8
2004-01-01 72.5
2004-04-01 72.6
2004-07-01 72.8
2004-10-01 73
2005-01-01 73
2005-04-01 73
2005-07-01 73.3
2005-10-01 73.5
2006-01-01 73.4
2006-04-01 73.6
2006-07-01 73.7
2006-10-01 73.7
2007-01-01 73.8
2007-04-01 73.6
2007-07-01 74.1
2007-10-01 74
2008-01-01 73.9
2008-04-01 74.2
2008-07-01 74
2008-10-01 73.8
2009-01-01 73.7
2009-04-01 73.5
2009-07-01 73.1
2009-10-01 73.3
2010-01-01 73.8
2010-04-01 73.6
2010-07-01 73.7
2010-10-01 73.6
2011-01-01 73.8
2011-04-01 73.9
2011-07-01 73.7
2011-10-01 73.1
2012-01-01 73.3
2012-04-01 73.6
2012-07-01 73.8
2012-10-01 73
2013-01-01 72.8
2013-04-01 72.9
2013-07-01 73.1
2013-10-01 73.4
2014-01-01 73
2014-04-01 73.3
2014-07-01 73.5
2014-10-01 73.2
2015-01-01 73.2
2015-04-01 73.3
2015-07-01 73.5
2015-10-01 73.6
2016-01-01 73.4
2016-04-01 73.4
2016-07-01 74.1
2016-10-01 73.9
2017-01-01 74.1
2017-04-01 74.4
2017-07-01 75.1
2017-10-01 75.1
2018-01-01 75.0
2018-04-01 75.0
