Quarterly Percent
1998-01-01 71
1998-04-01 71.9
1998-07-01 72.4
1998-10-01 71.7
1999-01-01 71.1
1999-04-01 71.3
1999-07-01 71.3
1999-10-01 70.7
2000-01-01 70.9
2000-04-01 71.7
2000-07-01 71.9
2000-10-01 71.6
2001-01-01 70.8
2001-04-01 71.5
2001-07-01 71.7
2001-10-01 71.1
2002-01-01 70.8
2002-04-01 72.2
2002-07-01 72.4
2002-10-01 72.1
2003-01-01 72.4
2003-04-01 72.9
2003-07-01 73.2
2003-10-01 72.7
2004-01-01 72.4
2004-04-01 73.3
2004-07-01 73.3
2004-10-01 73
2005-01-01 73.1
2005-04-01 73.7
2005-07-01 73.5
2005-10-01 73.4
2006-01-01 73.5
2006-04-01 74
2006-07-01 74.3
2006-10-01 73.9
2007-01-01 73.7
2007-04-01 74.2
2007-07-01 74.7
2007-10-01 74.2
2008-01-01 74
2008-04-01 74.8
2008-07-01 74.7
2008-10-01 74
2009-01-01 72.8
2009-04-01 73.3
2009-07-01 73.5
2009-10-01 72.2
2010-01-01 71.3
2010-04-01 70.9
2010-07-01 70.5
2010-10-01 68.7
2011-01-01 66.9
2011-04-01 66.5
2011-07-01 65.3
2011-10-01 62.7
2012-01-01 61.3
2012-04-01 60.5
2012-07-01 59.8
2012-10-01 58.7
2013-01-01 57.5
2013-04-01 58.2
2013-07-01 58.4
2013-10-01 57.5
2014-01-01 57.2
2014-04-01 58.1
2014-07-01 58.8
2014-10-01 57.8
2015-01-01 57.6
2015-04-01 59.3
2015-07-01 60.3
2015-10-01 59.9
2016-01-01 59.8
2016-04-01 61.3
2016-07-01 62.0
2016-10-01 60.8
2017-01-01 61.0
2017-04-01 62.9
2017-07-01 64.1
2017-10-01 62.9
2018-01-01 63.0
2018-04-01 64.9
