Quarterly Percent
1999-01-01 61.4
1999-04-01 62.4
1999-07-01 62.9
1999-10-01 63.1
2000-01-01 62
2000-04-01 62.7
2000-07-01 63.6
2000-10-01 63.9
2001-01-01 62.6
2001-04-01 62.9
2001-07-01 63.4
2001-10-01 62.9
2002-01-01 62.3
2002-04-01 62.9
2002-07-01 63.4
2002-10-01 63.2
2003-01-01 62.3
2003-04-01 63.5
2003-07-01 64.1
2003-10-01 63.9
2004-01-01 62.8
2004-04-01 63.1
2004-07-01 63.4
2004-10-01 63.3
2005-01-01 62.5
2005-04-01 63
2005-07-01 63.7
2005-10-01 63.4
2006-01-01 62.9
2006-04-01 64.2
2006-07-01 64.3
2006-10-01 64.3
2007-01-01 63.3
2007-04-01 64
2007-07-01 64.3
2007-10-01 63.2
2008-01-01 62.2
2008-04-01 62.9
2008-07-01 63.5
2008-10-01 62.3
2009-01-01 60.4
2009-04-01 61.2
2009-07-01 60.8
2009-10-01 60.5
2010-01-01 58.6
2010-04-01 59.8
2010-07-01 60.7
2010-10-01 60.4
2011-01-01 59.2
2011-04-01 60.8
2011-07-01 61.6
2011-10-01 61.3
2012-01-01 60
2012-04-01 61.4
2012-07-01 62.6
2012-10-01 62.6
2013-01-01 60.8
2013-04-01 63.7
2013-07-01 65
2013-10-01 65.3
2014-01-01 66.5
2014-04-01 67.3
2014-07-01 68.9
2014-10-01 68.6
2015-01-01 68.3
2015-04-01 70.1
2015-07-01 71.3
2015-10-01 71.4
2016-01-01 71.5
2016-04-01 72.9
2016-07-01 73.6
2016-10-01 73.9
2017-01-01 73.8
2017-04-01 75.1
2017-07-01 75.9
2017-10-01 76.1
2018-01-01 75.8
2018-04-01 76.2