Quarterly Percent
1998-04-01 36.0
1999-04-01 30.6
2000-04-01 33.9
2001-04-01 33.1
2002-04-01 31.9
2003-04-01 31.7
2004-04-01 34
2005-04-01 35.3
2006-04-01 33
2007-04-01 35.5
2008-04-01 33.9
2009-04-01 31.5
2010-01-01 31.6
2010-04-01 35.2
2010-07-01 30.1
2010-10-01 33.6
2011-01-01 32.3
2011-04-01 33.3
2011-07-01 30.4
2011-10-01 32.5
2012-01-01 32.5
2012-04-01 35.7
2012-07-01 31.7
2012-10-01 35.1
2013-01-01 33.5
2013-04-01 35.0
2013-07-01 32.0
2013-10-01 31.3
2014-01-01 33.4
2014-04-01 34.3
2014-07-01 32.8
2014-10-01 29.6
2015-01-01 32.2
2015-04-01 34.1
2015-07-01 31.2
2015-10-01 29.2
2016-01-01 31.3
2016-04-01 32.5
2016-07-01 29.9
2016-10-01 30.4
2017-01-01 31.4
2017-04-01 34.5
2017-07-01 31.0
2017-10-01 32.1
2018-01-01 33.1
2018-04-01 35.8
