Quarterly Percent
1999-04-01 8.9
2000-04-01 8.0
2001-04-01 7.8
2002-04-01 8.6
2003-04-01 9.9
2004-04-01 10.8
2005-01-01 11.7
2005-04-01 11.4
2005-07-01 11.2
2005-10-01 10.9
2006-01-01 11.4
2006-04-01 10.3
2006-07-01 9.9
2006-10-01 9.9
2007-01-01 9.6
2007-04-01 8.7
2007-07-01 8.5
2007-10-01 8.3
2008-01-01 8.3
2008-04-01 7.9
2008-07-01 7.2
2008-10-01 7.1
2009-01-01 8.2
2009-04-01 7.9
2009-07-01 8.0
2009-10-01 7.4
2010-01-01 8.0
2010-04-01 7.0
2010-07-01 6.7
2010-10-01 6.5
2011-01-01 6.7
2011-04-01 5.9
2011-07-01 5.7
2011-10-01 5.4
2012-01-01 5.9
2012-04-01 5.4
2012-07-01 5.4
2012-10-01 5.2
2013-01-01 5.8
2013-04-01 5.3
2013-07-01 5.2
2013-10-01 5.0
2014-01-01 5.5
2014-04-01 5.0
2014-07-01 4.9
2014-10-01 4.9
2015-01-01 5.1
2015-04-01 4.8
2015-07-01 4.5
2015-10-01 4.6
2016-01-01 4.6
2016-04-01 4.3
2016-07-01 4.1
2016-10-01 3.8
2017-01-01 4.2
2017-04-01 3.9
2017-07-01 3.7
2017-10-01 3.6
2018-01-01 3.7
2018-04-01 3.5