Quarterly Percent
1999-04-01 81.3
2000-04-01 83.8
2001-04-01 82.9
2002-04-01 81.9
2003-01-01 78.7
2003-04-01 80.9
2003-07-01 82.7
2003-10-01 78.2
2004-01-01 78.2
2004-04-01 80
2004-07-01 79.4
2004-10-01 77.6
2005-01-01 79.7
2005-04-01 81.6
2005-07-01 80.3
2005-10-01 80.5
2006-01-01 79.9
2006-04-01 81.9
2006-07-01 81.9
2006-10-01 79.8
2007-01-01 81
2007-04-01 82.2
2007-07-01 81.1
2007-10-01 78.9
2008-01-01 78.4
2008-04-01 81.1
2008-07-01 80.2
2008-10-01 78.6
2009-01-01 75.7
2009-04-01 75.5
2009-07-01 77.9
2009-10-01 77.1
2010-01-01 75.4
2010-04-01 76.8
2010-07-01 77
2010-10-01 75.6
2011-01-01 76.9
2011-04-01 78.9
2011-07-01 76.7
2011-10-01 74
2012-01-01 75.3
2012-04-01 79
2012-07-01 79.1
2012-10-01 78.1
2013-01-01 76.8
2013-04-01 79.4
2013-07-01 80.8
2013-10-01 78.8
2014-01-01 78.0
2014-04-01 81.4
2014-07-01 82.0
2014-10-01 80.7
2015-01-01 80.7
2015-04-01 82.8
2015-07-01 82.4
2015-10-01 83.3
2016-01-01 82.2
2016-04-01 84.3
2016-07-01 84.5
2016-10-01 83.3
2017-01-01 83.3
2017-04-01 84.8
2017-07-01 83.3
2017-10-01 82.5
2018-01-01 81.4
2018-04-01 82.6
