Quarterly Percent
1999-01-01 9.9
2000-01-01 13.1
2000-04-01 12.3
2000-07-01 11.3
2000-10-01 11.7
2001-01-01 14.2
2001-04-01 14.2
2001-07-01 13.4
2001-10-01 14.5
2002-01-01 16.8
2002-04-01 16.5
2002-07-01 15.7
2002-10-01 16.1
2003-01-01 17.4
2003-04-01 16.3
2003-07-01 15.5
2003-10-01 15.8
2004-01-01 17.6
2004-04-01 16.1
2004-07-01 15
2004-10-01 14.5
2005-01-01 15.6
2005-04-01 14.8
2005-07-01 13.5
2005-10-01 13.1
2006-01-01 13.7
2006-04-01 11.6
2006-07-01 10.2
2006-10-01 9.2
2007-01-01 9.2
2007-04-01 7.9
2007-07-01 7.3
2007-10-01 6.6
2008-01-01 6.3
2008-04-01 5.7
2008-07-01 4.7
2008-10-01 4.9
2009-01-01 6.4
2009-04-01 6.2
2009-07-01 6.1
2009-10-01 6.6
2010-01-01 9.1
2010-04-01 7.9
2010-07-01 7.1
2010-10-01 7.5
2011-01-01 8.3
2011-04-01 7.4
2011-07-01 6.9
2011-10-01 7.4
2012-01-01 8.5
2012-04-01 7.7
2012-07-01 7.6
2012-10-01 7.9
2013-01-01 9.2
2013-04-01 8.3
2013-07-01 7.6
2013-10-01 7.7
2014-01-01 8.8
2014-04-01 7.5
2014-07-01 6.3
2014-10-01 6.3
2015-01-01 7.2
2015-04-01 6.3
2015-07-01 5.7
2015-10-01 5.6
2016-01-01 6.0
2016-04-01 5.4
2016-07-01 4.7
2016-10-01 4.6
2017-01-01 4.6
2017-04-01 4.3
2017-07-01 3.8
2017-10-01 3.6
2018-01-01 3.4
2018-04-01 3.2