Quarterly Percent
1999-04-01 92.9
2000-04-01 92.8
2001-04-01 93.2
2002-04-01 93.3
2003-01-01 91.6
2003-04-01 91.6
2003-07-01 91.6
2003-10-01 91.6
2004-01-01 92.2
2004-04-01 92.2
2004-07-01 92.2
2004-10-01 92.2
2005-01-01 92.8
2005-04-01 92.8
2005-07-01 92.8
2005-10-01 92.8
2006-01-01 92.7
2006-04-01 92.7
2006-07-01 92.7
2006-10-01 92.7
2007-01-01 92.4
2007-04-01 91.4
2007-07-01 93.7
2007-10-01 91.3
2008-01-01 91.5
2008-04-01 90.5
2008-07-01 91.3
2008-10-01 87.4
2009-01-01 90.4
2009-04-01 90.7
2009-07-01 91.6
2009-10-01 90.6
2010-01-01 91.4
2010-04-01 90.6
2010-07-01 94.2
2010-10-01 91.8
2011-01-01 92.3
2011-04-01 91.2
2011-07-01 90
2011-10-01 89.8
2012-01-01 89.8
2012-04-01 92.2
2012-07-01 91.1
2012-10-01 91
2013-01-01 89.5
2013-04-01 88.9
2013-07-01 91.5
2013-10-01 90.4
2014-01-01 89.4
2014-04-01 90.4
2014-07-01 91
2014-10-01 91.2
2015-01-01 88.7
2015-04-01 89.7
2015-07-01 89.0
2015-10-01 89.7
2016-01-01 88.8
2016-04-01 88.4
2016-07-01 88.3
2016-10-01 88.3
2017-01-01 86.8
2017-04-01 87.4
2017-07-01 86.6
2017-10-01 88.7
2018-01-01 88.5
2018-04-01 88.1
