Quarterly Percent
1999-04-01 6.1
1999-07-01 5.8
1999-10-01 5.3
2000-01-01 4.9
2000-04-01 4.5
2000-07-01 4.5
2000-10-01 4.1
2001-01-01 3.8
2001-04-01 3.9
2001-07-01 4.4
2001-10-01 4.3
2002-01-01 4.8
2002-04-01 4.7
2002-07-01 4.9
2002-10-01 4.9
2003-01-01 5.1
2003-04-01 4.9
2003-07-01 5.5
2003-10-01 5.0
2004-01-01 4.8
2004-04-01 5.1
2004-07-01 5.2
2004-10-01 4.8
2005-01-01 4.5
2005-04-01 4.7
2005-07-01 4.9
2005-10-01 4.6
2006-01-01 4.4
2006-04-01 4.6
2006-07-01 5.1
2006-10-01 4.5
2007-01-01 5.0
2007-04-01 5.1
2007-07-01 5.1
2007-10-01 5.3
2008-01-01 6.1
2008-04-01 7.0
2008-07-01 8.4
2008-10-01 9.7
2009-01-01 13.3
2009-04-01 15.9
2009-07-01 16.3
2009-10-01 16.4
2010-01-01 17
2010-04-01 17.5
2010-07-01 17.5
2010-10-01 18
2011-01-01 18.0
2011-04-01 18.2
2011-07-01 18.4
2011-10-01 18.1
2012-01-01 18.5
2012-04-01 18.8
2012-07-01 18.4
2012-10-01 17.0
2013-01-01 16.2
2013-04-01 16.2
2013-07-01 15.2
2013-10-01 13.5
2014-01-01 14.0
2014-04-01 13.8
2014-07-01 12.8
2014-10-01 11.6
2015-01-01 11.7
2015-04-01 11.3
2015-07-01 10.9
2015-10-01 10.5
2016-01-01 10.1
2016-04-01 10.0
2016-07-01 9.3
2016-10-01 7.8
2017-01-01 7.5
2017-04-01 7.7
2017-07-01 7.3
2017-10-01 6.7
2018-01-01 6.0
2018-04-01 6.4