Quarterly Percent
1999-04-01 9.9
2000-04-01 9.5
2001-04-01 9.0
2002-04-01 11.1
2003-04-01 13.7
2004-04-01 15.4
2005-01-01 17.9
2005-04-01 17
2005-07-01 17.3
2005-10-01 14.9
2006-01-01 16
2006-04-01 14.3
2006-07-01 15.5
2006-10-01 13.3
2007-01-01 13.1
2007-04-01 12.8
2007-07-01 13.2
2007-10-01 11.4
2008-01-01 11.7
2008-04-01 11.5
2008-07-01 10.7
2008-10-01 10.4
2009-01-01 12.9
2009-04-01 13
2009-07-01 12.7
2009-10-01 11.2
2010-01-01 12.7
2010-04-01 10.6
2010-07-01 10.8
2010-10-01 8.8
2011-01-01 10.1
2011-04-01 9.6
2011-07-01 9.2
2011-10-01 7.9
2012-01-01 8.7
2012-04-01 9.2
2012-07-01 9.0
2012-10-01 7.9
2013-01-01 8.7
2013-04-01 8.4
2013-07-01 8.9
2013-10-01 7.8
2014-01-01 8.9
2014-04-01 8.6
2014-07-01 8.4
2014-10-01 7.5
2015-01-01 7.7
2015-04-01 8.3
2015-07-01 8.7
2015-10-01 7.0
2016-01-01 8.1
2016-04-01 8.6
2016-07-01 8.1
2016-10-01 6.7
2017-01-01 8.0
2017-04-01 8.1
2017-07-01 7.7
2017-10-01 6.7
2018-01-01 7.2
2018-04-01 7.8