Quarterly Percent
1999-04-01 38
2000-04-01 35.1
2001-04-01 35
2002-04-01 33.3
2003-01-01 33.5
2003-04-01 33.5
2003-07-01 33.5
2003-10-01 33.5
2004-01-01 29.6
2004-04-01 29.6
2004-07-01 29.6
2004-10-01 29.6
2005-01-01 27.8
2005-04-01 27.8
2005-07-01 27.8
2005-10-01 27.8
2006-01-01 26.2
2006-04-01 26.2
2006-07-01 26.2
2006-10-01 26.2
2007-01-01 24.6
2007-04-01 27.1
2007-07-01 26.1
2007-10-01 23.4
2008-01-01 27.3
2008-04-01 25.8
2008-07-01 27.5
2008-10-01 27.6
2009-01-01 22.5
2009-04-01 25.8
2009-07-01 24.6
2009-10-01 26
2010-01-01 22.1
2010-04-01 25.9
2010-07-01 23
2010-10-01 23.4
2011-01-01 21.3
2011-04-01 23
2011-07-01 24.1
2011-10-01 23.1
2012-01-01 21.7
2012-04-01 21.7
2012-07-01 19.5
2012-10-01 20.4
2013-01-01 18.9
2013-04-01 20
2013-07-01 19.9
2013-10-01 19.1
2014-01-01 20.9
2014-04-01 18.7
2014-07-01 19.7
2014-10-01 16.9
2015-01-01 18.4
2015-04-01 17.7
2015-07-01 19.6
2015-10-01 19.0
2016-01-01 19.1
2016-04-01 19.9
2016-07-01 19.4
2016-10-01 17.5
2017-01-01 16.2
2017-04-01 15.8
2017-07-01 14.7
2017-10-01 17.3
2018-01-01 14.3
2018-04-01 15.8
