Quarterly Percent
1999-04-01 85.7
2000-04-01 86.7
2001-04-01 87.1
2002-04-01 84.4
2003-01-01 80
2003-04-01 83.8
2003-07-01 84.1
2003-10-01 81.1
2004-01-01 79.3
2004-04-01 82.4
2004-07-01 84.1
2004-10-01 82.2
2005-01-01 79.5
2005-04-01 85.1
2005-07-01 86.5
2005-10-01 82
2006-01-01 82.4
2006-04-01 85.7
2006-07-01 86
2006-10-01 84.3
2007-01-01 84.2
2007-04-01 85.5
2007-07-01 86.4
2007-10-01 85
2008-01-01 83.2
2008-04-01 85.8
2008-07-01 84.9
2008-10-01 80.8
2009-01-01 75.5
2009-04-01 76.7
2009-07-01 79.3
2009-10-01 76.1
2010-01-01 75.2
2010-04-01 78.2
2010-07-01 78.1
2010-10-01 76.3
2011-01-01 73.8
2011-04-01 77
2011-07-01 78.7
2011-10-01 77.3
2012-01-01 75.4
2012-04-01 78.3
2012-07-01 79.2
2012-10-01 76.7
2013-01-01 76
2013-04-01 79.7
2013-07-01 81.3
2013-10-01 78.8
2014-01-01 78.2
2014-04-01 82.5
2014-07-01 83.4
2014-10-01 81.2
2015-01-01 81.1
2015-04-01 84.2
2015-07-01 85.0
2015-10-01 81.3
2016-01-01 83.0
2016-04-01 86.3
2016-07-01 86.7
2016-10-01 84.7
2017-01-01 84.4
2017-04-01 86.1
2017-07-01 84.4
2017-10-01 82.2
2018-01-01 81.9
2018-04-01 84.0
