Quarterly Percent
1998-04-01 70.5
1999-01-01 72.6
1999-04-01 72.9
1999-07-01 72.2
1999-10-01 71.7
2000-01-01 72.4
2000-04-01 73.2
2000-07-01 73.2
2000-10-01 72.3
2001-01-01 71.7
2001-04-01 70.7
2001-07-01 70.1
2001-10-01 72.1
2002-01-01 72.2
2002-04-01 72
2002-07-01 72.9
2002-10-01 72.6
2003-01-01 73.1
2003-04-01 73.1
2003-07-01 73.2
2003-10-01 74.9
2004-01-01 73.9
2004-04-01 74.3
2004-07-01 74.8
2004-10-01 75.9
2005-01-01 76.9
2005-04-01 76.8
2005-07-01 77.1
2005-10-01 76.4
2006-01-01 76.2
2006-04-01 77
2006-07-01 77.1
2006-10-01 77.5
2007-01-01 77.8
2007-04-01 77.5
2007-07-01 77.7
2007-10-01 79.3
2008-01-01 79.4
2008-04-01 78.7
2008-07-01 79.2
2008-10-01 78.7
2009-01-01 80.5
2009-04-01 78.6
2009-07-01 78.7
2009-10-01 79.2
2010-01-01 81
2010-04-01 79.4
2010-07-01 79.7
2010-10-01 81.6
2011-01-01 77.8
2011-04-01 78.9
2011-07-01 79.2
2011-10-01 79
2012-01-01 78.6
2012-04-01 78.5
2012-07-01 79.4
2012-10-01 80
2013-01-01 79.4
2013-04-01 79.6
2013-07-01 80.6
2013-10-01 79.4
2014-01-01 80.5
2014-04-01 80.1
2014-07-01 80.9
2014-10-01 80.7
2015-01-01 81.0
2015-04-01 79.2
2015-07-01 80.1
2015-10-01 80.5
2016-01-01 79.5
2016-04-01 79.4
2016-07-01 79.5
2016-10-01 81.0
2017-01-01 79.7
2017-04-01 79.9
2017-07-01 78.9
2017-10-01 79.9
2018-01-01 79.8
2018-04-01 79.7
