Quarterly Percent
1999-04-01 90.5
2000-04-01 91.8
2001-04-01 90.6
2002-04-01 90.2
2003-01-01 87.3
2003-04-01 89
2003-07-01 88.7
2003-10-01 87.9
2004-01-01 87
2004-04-01 88.3
2004-07-01 87.3
2004-10-01 86.8
2005-01-01 86.9
2005-04-01 88.5
2005-07-01 88.2
2005-10-01 87.1
2006-01-01 87.2
2006-04-01 88.6
2006-07-01 88.7
2006-10-01 88.9
2007-01-01 88.5
2007-04-01 89
2007-07-01 88.8
2007-10-01 87.7
2008-01-01 87.1
2008-04-01 88.7
2008-07-01 87.2
2008-10-01 86.5
2009-01-01 82
2009-04-01 82.1
2009-07-01 84.1
2009-10-01 83.8
2010-01-01 82.8
2010-04-01 83
2010-07-01 82.8
2010-10-01 83
2011-01-01 83.5
2011-04-01 83.6
2011-07-01 83.3
2011-10-01 83.2
2012-01-01 83.3
2012-04-01 85.2
2012-07-01 84.7
2012-10-01 84.6
2013-01-01 83.1
2013-04-01 85
2013-07-01 86.1
2013-10-01 84.7
2014-01-01 83.9
2014-04-01 87.4
2014-07-01 87.3
2014-10-01 87.0
2015-01-01 87.2
2015-04-01 89.2
2015-07-01 88.2
2015-10-01 88.8
2016-01-01 88.6
2016-04-01 89.9
2016-07-01 90.3
2016-10-01 90.6
2017-01-01 89.7
2017-04-01 90.5
2017-07-01 90.0
2017-10-01 89.1
2018-01-01 88.6
2018-04-01 89.0
