Quarterly Percent
1998-04-01 17.5
1999-04-01 16.3
2000-04-01 9.5
2001-01-01 13
2001-04-01 11.7
2001-07-01 10.3
2001-10-01 12
2002-01-01 14.7
2002-04-01 12.9
2002-07-01 11.1
2002-10-01 12.8
2003-01-01 14.4
2003-04-01 14.3
2003-07-01 11.8
2003-10-01 14.4
2004-01-01 18.3
2004-04-01 18.5
2004-07-01 14.8
2004-10-01 16.7
2005-01-01 19.4
2005-04-01 28
2005-07-01 19
2005-10-01 20.3
2006-01-01 24.4
2006-04-01 26.8
2006-07-01 16.9
2006-10-01 18
2007-01-01 21.3
2007-04-01 23.5
2007-07-01 15.1
2007-10-01 17.4
2008-01-01 20.5
2008-04-01 25.1
2008-07-01 16.2
2008-10-01 18.8
2009-01-01 24.3
2009-04-01 29.1
2009-07-01 22.2
2009-10-01 24
2010-01-01 28.4
2010-04-01 29.3
2010-07-01 20.3
2010-10-01 21.1
2011-01-01 24.9
2011-04-01 27.1
2011-07-01 18.4
2011-10-01 20.6
2012-01-01 24.8
2012-04-01 27.4
2012-07-01 20.1
2012-10-01 22.1
2013-01-01 26.6
2013-04-01 27.9
2013-07-01 19.1
2013-10-01 20.5
2014-01-01 25.6
2014-04-01 27.6
2014-07-01 18.1
2014-10-01 20.2
2015-01-01 23.7
2015-04-01 25.2
2015-07-01 15.9
2015-10-01 16.5
2016-01-01 21.9
2016-04-01 22.9
2016-07-01 14.7
2016-10-01 15.8
2017-01-01 20.3
2017-04-01 21.9
2017-07-01 14.8
2017-10-01 14.5
2018-01-01 18.0
2018-04-01 20.6