Quarterly Percent
1998-04-01 67.4
1999-01-01 65.5
1999-04-01 67.1
1999-07-01 60.7
1999-10-01 63.9
2000-01-01 67.3
2000-04-01 64.3
2000-07-01 62.4
2000-10-01 64.8
2001-01-01 66
2001-04-01 66.4
2001-07-01 59.6
2001-10-01 65
2002-01-01 66.7
2002-04-01 66.2
2002-07-01 61.5
2002-10-01 62.8
2003-01-01 65.9
2003-04-01 66.5
2003-07-01 64.1
2003-10-01 63.6
2004-01-01 65
2004-04-01 66
2004-07-01 62.7
2004-10-01 65.2
2005-01-01 64.7
2005-04-01 66.8
2005-07-01 64.7
2005-10-01 63.6
2006-01-01 64.6
2006-04-01 67.7
2006-07-01 65
2006-10-01 64
2007-01-01 66.7
2007-04-01 66.9
2007-07-01 65.5
2007-10-01 65.6
2008-01-01 67.1
2008-04-01 68.6
2008-07-01 64.7
2008-10-01 66
2009-01-01 69
2009-04-01 68.2
2009-07-01 66.5
2009-10-01 66.5
2010-01-01 68.4
2010-04-01 69.2
2010-07-01 65.3
2010-10-01 67
2011-01-01 68.1
2011-04-01 70
2011-07-01 67.1
2011-10-01 66.8
2012-01-01 69.1
2012-04-01 70.2
2012-07-01 68.1
2012-10-01 66.7
2013-01-01 70.2
2013-04-01 69.3
2013-07-01 67.4
2013-10-01 69.1
2014-01-01 70.7
2014-04-01 71.2
2014-07-01 68.3
2014-10-01 69.1
2015-01-01 69.6
2015-04-01 71.4
2015-07-01 69.4
2015-10-01 69.7
2016-01-01 71.2
2016-04-01 72.3
2016-07-01 71.3
2016-10-01 71.4
2017-01-01 73.3
2017-04-01 74.2
2017-07-01 68.8
2017-10-01 71.3
2018-01-01 72.3
2018-04-01 72.4