Quarterly Percent
2000-04-01 28.6
2001-04-01 28.5
2002-04-01 27.4
2003-04-01 26.2
2004-04-01 25.4
2005-01-01 24.8
2005-04-01 24.9
2005-07-01 25.4
2005-10-01 24.6
2006-01-01 24.2
2006-04-01 24.0
2006-07-01 24.2
2006-10-01 23.7
2007-01-01 23.8
2007-04-01 23.8
2007-07-01 23.6
2007-10-01 23.0
2008-01-01 23.0
2008-04-01 22.8
2008-07-01 23.0
2008-10-01 22.4
2009-01-01 22.5
2009-04-01 22.4
2009-07-01 22.7
2009-10-01 21.9
2010-01-01 22.0
2010-04-01 21.8
2010-07-01 22.3
2010-10-01 21.5
2011-01-01 21.8
2011-04-01 21.6
2011-07-01 22.0
2011-10-01 21.2
2012-01-01 21.0
2012-04-01 20.9
2012-07-01 21.3
2012-10-01 20.6
2013-01-01 20.6
2013-04-01 20.6
2013-07-01 21.1
2013-10-01 20.6
2014-01-01 20.6
2014-04-01 20.7
2014-07-01 21.1
2014-10-01 20.4
2015-01-01 20.7
2015-04-01 20.5
2015-07-01 21.2
2015-10-01 20.5
2016-01-01 20.5
2016-04-01 20.4
2016-07-01 20.6
2016-10-01 20.2
2017-01-01 20.5
2017-04-01 20.5
2017-07-01 20.5
2017-10-01 20.2
2018-01-01 20.3
2018-04-01 20.0