Quarterly Percent
1998-01-01 62.6
1998-04-01 61.6
1998-07-01 60.2
1998-10-01 60.3
1999-01-01 62
1999-04-01 61.9
1999-07-01 60.9
1999-10-01 61.8
2000-01-01 62.5
2000-04-01 61.9
2000-07-01 60.8
2000-10-01 61.2
2001-01-01 63.6
2001-04-01 63.7
2001-07-01 62.9
2001-10-01 63.4
2002-01-01 64.9
2002-04-01 64.7
2002-07-01 63.7
2002-10-01 64.8
2003-01-01 65.4
2003-04-01 65.4
2003-07-01 64.5
2003-10-01 66.4
2004-01-01 63.6
2004-04-01 63.3
2004-07-01 63.5
2004-10-01 64.7
2005-01-01 65.6
2005-04-01 66
2005-07-01 66.6
2005-10-01 66.4
2006-01-01 66.5
2006-04-01 67.7
2006-07-01 68.3
2006-10-01 68.2
2007-01-01 69.9
2007-04-01 69.2
2007-07-01 68.4
2007-10-01 69.2
2008-01-01 69.4
2008-04-01 68.6
2008-07-01 68.9
2008-10-01 70.1
2009-01-01 70.8
2009-04-01 71.7
2009-07-01 71.1
2009-10-01 71.1
2010-01-01 71.2
2010-04-01 71.9
2010-07-01 73
2010-10-01 71.5
2011-01-01 72.4
2011-04-01 74.1
2011-07-01 73.6
2011-10-01 71.5
2012-01-01 71.2
2012-04-01 71.6
2012-07-01 71.6
2012-10-01 71.4
2013-01-01 72.5
2013-04-01 73.3
2013-07-01 73.1
2013-10-01 72.6
2014-01-01 73.2
2014-04-01 73.2
2014-07-01 72.4
2014-10-01 72.7
2015-01-01 74.2
2015-04-01 74.4
2015-07-01 73.7
2015-10-01 72.9
2016-01-01 74.3
2016-04-01 73.4
2016-07-01 73.3
2016-10-01 72.6
2017-01-01 74.1
2017-04-01 74.5
2017-07-01 73.2
2017-10-01 73.5
2018-01-01 73.9
2018-04-01 74.1
