Quarterly Percent
1999-04-01 12.4
2000-01-01 16.1
2000-04-01 14.6
2000-07-01 15.5
2000-10-01 14.4
2001-01-01 14.2
2001-04-01 13.1
2001-07-01 13
2001-10-01 13.1
2002-01-01 13.9
2002-04-01 10.3
2002-07-01 10
2002-10-01 14.7
2003-01-01 12.8
2003-04-01 10.9
2003-07-01 8.9
2003-10-01 7.8
2004-01-01 10
2004-04-01 10.2
2004-07-01 9.2
2004-10-01 9.5
2005-01-01 11.3
2005-04-01 9.7
2005-07-01 6.0
2005-10-01 7.6
2006-01-01 8.1
2006-04-01 5.3
2006-07-01 4.5
2006-10-01 5.0
2007-01-01 4.9
2007-04-01 4.6
2007-07-01 3.4
2007-10-01 3.8
2008-01-01 2.8
2008-04-01 3.8
2008-07-01 6.2
2008-10-01 6.8
2009-01-01 12.7
2009-04-01 15.7
2009-07-01 15.5
2009-10-01 19.2
2010-01-01 23.1
2010-04-01 19.9
2010-07-01 14.1
2010-10-01 12.6
2011-01-01 13.6
2011-04-01 12.1
2011-07-01 9.6
2011-10-01 10.4
2012-01-01 10.7
2012-04-01 9.4
2012-07-01 9.1
2012-10-01 9.9
2013-01-01 9.6
2013-04-01 7.4
2013-07-01 8.1
2013-10-01 8.2
2014-01-01 8.4
2014-04-01 6.0
2014-07-01 8.2
2014-10-01 5.9
2015-01-01 6.9
2015-04-01 5.8
2015-07-01 3.4
2015-10-01 5.3
2016-01-01 6.0
2016-04-01 6.4
2016-07-01 6.4
2016-10-01 5.9
2017-01-01 4.5
2017-04-01 7.0
2017-07-01 4.3
2017-10-01 4.9
2018-01-01 6.7
2018-04-01 3.4