Quarterly Percent
1999-04-01 5.4
1999-07-01 4.9
1999-10-01 4.7
2000-01-01 4.4
2000-04-01 4.1
2000-07-01 3.7
2000-10-01 3.5
2001-01-01 3.3
2001-04-01 3.3
2001-07-01 3.3
2001-10-01 3.4
2002-01-01 3.8
2002-04-01 3.7
2002-07-01 3.7
2002-10-01 3.9
2003-01-01 4.1
2003-04-01 4.0
2003-07-01 4.2
2003-10-01 3.9
2004-01-01 3.9
2004-04-01 4.0
2004-07-01 3.7
2004-10-01 3.7
2005-01-01 3.6
2005-04-01 3.6
2005-07-01 3.7
2005-10-01 3.8
2006-01-01 3.8
2006-04-01 3.9
2006-07-01 3.9
2006-10-01 3.9
2007-01-01 4.3
2007-04-01 4.2
2007-07-01 4.3
2007-10-01 4.3
2008-01-01 4.6
2008-04-01 4.9
2008-07-01 6.1
2008-10-01 6.9
2009-01-01 9.7
2009-04-01 11.0
2009-07-01 11.9
2009-10-01 11.6
2010-01-01 12.3
2010-04-01 13.0
2010-07-01 13.4
2010-10-01 13.6
2011-01-01 14.0
2011-04-01 13.9
2011-07-01 14.5
2011-10-01 13.9
2012-01-01 14.6
2012-04-01 14.0
2012-07-01 14.1
2012-10-01 13.2
2013-01-01 13.2
2013-04-01 13.0
2013-07-01 12.2
2013-10-01 11.2
2014-01-01 11.6
2014-04-01 10.9
2014-07-01 10.9
2014-10-01 9.4
2015-01-01 9.4
2015-04-01 9.2
2015-07-01 8.8
2015-10-01 8.2
2016-01-01 8.1
2016-04-01 8.1
2016-07-01 7.6
2016-10-01 6.3
2017-01-01 6.4
2017-04-01 5.8
2017-07-01 5.9
2017-10-01 5.4
2018-01-01 4.9
2018-04-01 4.9