Quarterly Percent
2000-04-01 17.8
2001-04-01 17.9
2002-04-01 17.4
2003-04-01 16.7
2004-04-01 16.3
2005-01-01 16.1
2005-04-01 16.0
2005-07-01 16.3
2005-10-01 15.9
2006-01-01 15.6
2006-04-01 15.5
2006-07-01 15.7
2006-10-01 15.4
2007-01-01 15.5
2007-04-01 15.4
2007-07-01 15.3
2007-10-01 15.0
2008-01-01 15.1
2008-04-01 14.9
2008-07-01 15
2008-10-01 14.8
2009-01-01 14.9
2009-04-01 14.9
2009-07-01 15.2
2009-10-01 14.7
2010-01-01 14.8
2010-04-01 14.7
2010-07-01 15
2010-10-01 14.6
2011-01-01 14.9
2011-04-01 14.7
2011-07-01 15
2011-10-01 14.5
2012-01-01 14.5
2012-04-01 14.3
2012-07-01 14.6
2012-10-01 14.2
2013-01-01 14.4
2013-04-01 14.3
2013-07-01 14.7
2013-10-01 14.4
2014-01-01 14.6
2014-04-01 14.6
2014-07-01 14.8
2014-10-01 14.4
2015-01-01 14.7
2015-04-01 14.5
2015-07-01 14.9
2015-10-01 14.5
2016-01-01 14.7
2016-04-01 14.5
2016-07-01 14.6
2016-10-01 14.4
2017-01-01 14.6
2017-04-01 14.5
2017-07-01 14.6
2017-10-01 14.4
2018-01-01 14.5
2018-04-01 14.2