Quarterly Percent
1998-04-01 94.3
1999-04-01 95.1
2000-04-01 95.2
2001-04-01 95.3
2002-04-01 93.9
2003-04-01 92.4
2004-04-01 92.3
2005-04-01 92.6
2006-04-01 92.9
2007-04-01 93.6
2008-04-01 93.7
2009-04-01 92.8
2010-01-01 89.6
2010-04-01 90.9
2010-07-01 91.3
2010-10-01 90.8
2011-01-01 91.1
2011-04-01 92.0
2011-07-01 92.0
2011-10-01 91.2
2012-01-01 91.1
2012-04-01 91.9
2012-07-01 91.8
2012-10-01 91.2
2013-01-01 90.0
2013-04-01 90.5
2013-07-01 90.8
2013-10-01 91.3
2014-01-01 89.9
2014-04-01 90.9
2014-07-01 90.9
2014-10-01 91.5
2015-01-01 91.1
2015-04-01 91.5
2015-07-01 91.4
2015-10-01 92.2
2016-01-01 90.8
2016-04-01 91.5
2016-07-01 91.3
2016-10-01 91.3
2017-01-01 90.2
2017-04-01 91.7
2017-07-01 91.3
2017-10-01 91.2
2018-01-01 90.8
2018-04-01 91.7
