Quarterly Percent
1998-01-01 6.3
1998-04-01 4.9
1998-07-01 5.0
1998-10-01 5.1
1999-01-01 5.1
1999-04-01 4.8
1999-07-01 4.6
1999-10-01 4.5
2000-01-01 4.7
2000-04-01 4.0
2000-07-01 4.3
2000-10-01 4.0
2001-01-01 4.4
2001-04-01 4.1
2001-07-01 4.2
2001-10-01 4.4
2002-01-01 4.6
2002-04-01 4.8
2002-07-01 5.3
2002-10-01 6.4
2003-01-01 6.7
2003-04-01 6.5
2003-07-01 6.5
2003-10-01 6.9
2004-01-01 6.7
2004-04-01 6.7
2004-07-01 7.2
2004-10-01 7.5
2005-01-01 7.9
2005-04-01 7.6
2005-07-01 8.2
2005-10-01 8.5
2006-01-01 8.2
2006-04-01 7.7
2006-07-01 7.9
2006-10-01 8.7
2007-01-01 8.9
2007-04-01 8.3
2007-07-01 8.3
2007-10-01 8.3
2008-01-01 8.0
2008-04-01 7.7
2008-07-01 8.1
2008-10-01 8.3
2009-01-01 9.3
2009-04-01 9.6
2009-07-01 10.4
2009-10-01 10.7
2010-01-01 11.2
2010-04-01 11.2
2010-07-01 11.5
2010-10-01 11.7
2011-01-01 13
2011-04-01 12.7
2011-07-01 13.1
2011-10-01 14.6
2012-01-01 15.5
2012-04-01 15.6
2012-07-01 16.5
2012-10-01 17.7
2013-01-01 18.4
2013-04-01 17.2
2013-07-01 16.3
2013-10-01 16.1
2014-01-01 15.7
2014-04-01 14.5
2014-07-01 13.7
2014-10-01 14
2015-01-01 14.3
2015-04-01 12.4
2015-07-01 12.4
2015-10-01 12.7
2016-01-01 12.9
2016-04-01 11.3
2016-07-01 11.0
2016-10-01 10.9
2017-01-01 10.5
2017-04-01 9.2
2017-07-01 8.7
2017-10-01 8.4
2018-01-01 8.2
2018-04-01 7.0