Quarterly Percent
1999-04-01 77.3
2000-01-01 73.5
2000-04-01 76.3
2000-07-01 74
2000-10-01 74.2
2001-01-01 75.2
2001-04-01 74.8
2001-07-01 75.9
2001-10-01 75.9
2002-01-01 75.1
2002-04-01 76.7
2002-07-01 75.7
2002-10-01 74.7
2003-01-01 75.7
2003-04-01 76.8
2003-07-01 78.1
2003-10-01 77.6
2004-01-01 78
2004-04-01 77.9
2004-07-01 77.7
2004-10-01 77.4
2005-01-01 77.8
2005-04-01 79.2
2005-07-01 79.6
2005-10-01 80
2006-01-01 83.2
2006-04-01 84.4
2006-07-01 84.2
2006-10-01 84.5
2007-01-01 84.2
2007-04-01 84.7
2007-07-01 85.7
2007-10-01 84.5
2008-01-01 84
2008-04-01 84.4
2008-07-01 84.5
2008-10-01 82.6
2009-01-01 77.9
2009-04-01 76.9
2009-07-01 76.3
2009-10-01 75
2010-01-01 72.3
2010-04-01 73.7
2010-07-01 76
2010-10-01 77.6
2011-01-01 76
2011-04-01 77.2
2011-07-01 80.4
2011-10-01 79.4
2012-01-01 78
2012-04-01 79.6
2012-07-01 80.4
2012-10-01 79.8
2013-01-01 79.2
2013-04-01 80.6
2013-07-01 80.7
2013-10-01 81.1
2014-01-01 79.6
2014-04-01 81.6
2014-07-01 80.8
2014-10-01 81.4
2015-01-01 81.3
2015-04-01 82.5
2015-07-01 84.5
2015-10-01 83.6
2016-01-01 82.2
2016-04-01 83.4
2016-07-01 82.2
2016-10-01 82.5
2017-01-01 83.5
2017-04-01 82.9
2017-07-01 84.7
2017-10-01 84.7
2018-01-01 82.6
2018-04-01 84.2