Quarterly Percent
1999-01-01 64.6
1999-04-01 65.1
1999-07-01 65.1
1999-10-01 65.1
2000-01-01 65.9
2000-04-01 67.5
2000-07-01 66.7
2000-10-01 66.6
2001-01-01 69.4
2001-04-01 70.9
2001-07-01 69.7
2001-10-01 70.5
2002-01-01 71.1
2002-04-01 71.5
2002-07-01 70.2
2002-10-01 70
2003-01-01 71.2
2003-04-01 73.4
2003-07-01 72.7
2003-10-01 73.5
2004-01-01 74.6
2004-04-01 76.4
2004-07-01 76
2004-10-01 75.6
2005-01-01 75.9
2005-04-01 76.9
2005-07-01 75.9
2005-10-01 76.2
2006-01-01 77
2006-04-01 77.9
2006-07-01 75.6
2006-10-01 76.9
2007-01-01 78.2
2007-04-01 79.4
2007-07-01 77.1
2007-10-01 78.1
2008-01-01 79.3
2008-04-01 79.9
2008-07-01 77.6
2008-10-01 77.3
2009-01-01 79.6
2009-04-01 79.1
2009-07-01 77.6
2009-10-01 77.8
2010-01-01 78.4
2010-04-01 78.7
2010-07-01 77.5
2010-10-01 77.5
2011-01-01 79.1
2011-04-01 79.4
2011-07-01 77.7
2011-10-01 78.1
2012-01-01 78
2012-04-01 77.7
2012-07-01 75.2
2012-10-01 75.6
2013-01-01 76.6
2013-04-01 76.9
2013-07-01 75.5
2013-10-01 76.4
2014-01-01 75.6
2014-04-01 74.5
2014-07-01 73.2
2014-10-01 73.2
2015-01-01 73.7
2015-04-01 72.9
2015-07-01 71.5
2015-10-01 71.9
2016-01-01 72.8
2016-04-01 73.3
2016-07-01 70.5
2016-10-01 70.5
2017-01-01 72.0
2017-04-01 71.9
2017-07-01 71.5
2017-10-01 71.8
2018-01-01 74.3
2018-04-01 73.4