Quarterly Percent
1998-04-01 29.2
1999-04-01 31.5
2000-04-01 29.4
2001-04-01 31.4
2002-04-01 29.6
2003-04-01 29.6
2004-04-01 31.9
2005-04-01 33.4
2006-04-01 29.8
2007-04-01 29.8
2008-04-01 31.9
2009-04-01 33.9
2010-01-01 32.4
2010-04-01 31.8
2010-07-01 28.9
2010-10-01 31.6
2011-01-01 31.7
2011-04-01 33.1
2011-07-01 29.3
2011-10-01 29.2
2012-01-01 33.0
2012-04-01 34.0
2012-07-01 28.3
2012-10-01 29.1
2013-01-01 29.9
2013-04-01 32.6
2013-07-01 31.1
2013-10-01 30.8
2014-01-01 32.3
2014-04-01 32.9
2014-07-01 29.6
2014-10-01 31.8
2015-01-01 34.9
2015-04-01 34.6
2015-07-01 31.5
2015-10-01 31.9
2016-01-01 32.0
2016-04-01 35.7
2016-07-01 31.8
2016-10-01 29.4
2017-01-01 31.8
2017-04-01 32.4
2017-07-01 27.3
2017-10-01 30.4
2018-01-01 33.2
2018-04-01 33.1
