Quarterly Percent
1998-04-01 22.6
1999-01-01 23.9
1999-04-01 23.4
1999-07-01 27
1999-10-01 26
2000-01-01 23.6
2000-04-01 26.7
2000-07-01 25.7
2000-10-01 25.4
2001-01-01 25.6
2001-04-01 25
2001-07-01 28.6
2001-10-01 25
2002-01-01 24.8
2002-04-01 25.7
2002-07-01 28.2
2002-10-01 27.3
2003-01-01 25.3
2003-04-01 23.8
2003-07-01 24
2003-10-01 25.9
2004-01-01 26.6
2004-04-01 25.9
2004-07-01 25.2
2004-10-01 24
2005-01-01 25.6
2005-04-01 25.5
2005-07-01 23.1
2005-10-01 26.6
2006-01-01 25.6
2006-04-01 23
2006-07-01 24.4
2006-10-01 25.9
2007-01-01 24.6
2007-04-01 24
2007-07-01 25
2007-10-01 26.2
2008-01-01 25.2
2008-04-01 24.4
2008-07-01 25.2
2008-10-01 25.3
2009-01-01 21.7
2009-04-01 23
2009-07-01 24.6
2009-10-01 23.6
2010-01-01 22.4
2010-04-01 21.6
2010-07-01 24.4
2010-10-01 24
2011-01-01 24.4
2011-04-01 23.3
2011-07-01 23.5
2011-10-01 25.6
2012-01-01 22.2
2012-04-01 20.7
2012-07-01 23.6
2012-10-01 24.2
2013-01-01 21.1
2013-04-01 21
2013-07-01 23.2
2013-10-01 22.2
2014-01-01 19.8
2014-04-01 20.7
2014-07-01 24
2014-10-01 22.8
2015-01-01 21.8
2015-04-01 21.6
2015-07-01 21.9
2015-10-01 21.4
2016-01-01 21.9
2016-04-01 20.8
2016-07-01 21.3
2016-10-01 21.7
2017-01-01 19.4
2017-04-01 17.9
2017-07-01 23.3
2017-10-01 22.9
2018-01-01 23.0
2018-04-01 20.3