Quarterly Percent
1999-01-01 68.7
2000-01-01 68.8
2001-01-01 68.6
2002-01-01 69
2003-01-01 69.8
2003-04-01 69.5
2003-07-01 69.8
2003-10-01 69.7
2004-01-01 69.7
2004-04-01 69.6
2004-07-01 70.0
2004-10-01 69.8
2005-01-01 69.5
2005-04-01 69.7
2005-07-01 70.0
2005-10-01 69.6
2006-01-01 69.5
2006-04-01 69.4
2006-07-01 70.0
2006-10-01 69.6
2007-01-01 69.5
2007-04-01 69.6
2007-07-01 70.0
2007-10-01 69.7
2008-01-01 69.6
2008-04-01 69.7
2008-07-01 70.1
2008-10-01 70.1
2009-01-01 70.1
2009-04-01 70.4
2009-07-01 70.3
2009-10-01 70.2
2010-01-01 70.3
2010-04-01 70.2
2010-07-01 70.4
2010-10-01 70.1
2011-01-01 69.9
2011-04-01 70.0
2011-07-01 70.2
2011-10-01 70.3
2012-01-01 70.3
2012-04-01 70.6
2012-07-01 70.8
2012-10-01 71.2
2013-01-01 70.9
2013-04-01 71.1
2013-07-01 71.3
2013-10-01 71.2
2014-01-01 70.9
2014-04-01 70.9
2014-07-01 71.0
2014-10-01 71.2
2015-01-01 71.0
2015-04-01 71.2
2015-07-01 71.4
2015-10-01 71.4
2016-01-01 71.4
2016-04-01 71.3
2016-07-01 71.5
2016-10-01 71.5
2017-01-01 71.0
2017-04-01 71.6
2017-07-01 71.7
2017-10-01 71.7
2018-01-01 71.8
2018-04-01 71.8
