Quarterly Percent
1999-04-01 29.5
2000-04-01 28.3
2001-04-01 30.3
2002-04-01 28.4
2003-01-01 26.1
2003-04-01 26.1
2003-07-01 26.1
2003-10-01 26.1
2004-01-01 20.5
2004-04-01 20.5
2004-07-01 20.5
2004-10-01 20.5
2005-01-01 21.3
2005-04-01 21.3
2005-07-01 21.3
2005-10-01 21.3
2006-01-01 21.2
2006-04-01 21.2
2006-07-01 21.2
2006-10-01 21.2
2007-01-01 17.4
2007-04-01 15.2
2007-07-01 19.9
2007-10-01 21.2
2008-01-01 17.3
2008-04-01 22.2
2008-07-01 20.6
2008-10-01 22.1
2009-01-01 21.1
2009-04-01 25.5
2009-07-01 24.1
2009-10-01 26
2010-01-01 17.4
2010-04-01 19.3
2010-07-01 23.8
2010-10-01 20.9
2011-01-01 19.3
2011-04-01 15.1
2011-07-01 20.4
2011-10-01 19.2
2012-01-01 19.1
2012-04-01 17.2
2012-07-01 22
2012-10-01 21.9
2013-01-01 19.8
2013-04-01 19.6
2013-07-01 15
2013-10-01 23.2
2014-01-01 24.9
2014-04-01 16.2
2014-07-01 15.9
2014-10-01 18.2
2015-01-01 29.0
2015-04-01 28.5
2015-07-01 32.0
2015-10-01 25.6
2016-01-01 21.0
2016-04-01 25.4
2016-07-01 31.4
2016-10-01 23.9
2017-01-01 27.3
2017-04-01 20.4
2017-07-01 26.4
2017-10-01 23.9
2018-01-01 26.6
2018-04-01 24.9