Quarterly Percent
1998-01-01 4.9
1998-04-01 3.8
1998-07-01 3.8
1998-10-01 4.0
1999-01-01 4.1
1999-04-01 4.2
1999-07-01 3.9
1999-10-01 3.8
2000-01-01 3.8
2000-04-01 3.1
2000-07-01 3.2
2000-10-01 2.9
2001-01-01 3.1
2001-04-01 2.9
2001-07-01 3.3
2001-10-01 3.4
2002-01-01 3.7
2002-04-01 3.9
2002-07-01 4.2
2002-10-01 5.0
2003-01-01 5.6
2003-04-01 5.3
2003-07-01 5.6
2003-10-01 5.7
2004-01-01 5.5
2004-04-01 5.7
2004-07-01 6.0
2004-10-01 6.4
2005-01-01 6.6
2005-04-01 6.6
2005-07-01 6.8
2005-10-01 7.1
2006-01-01 6.6
2006-04-01 6.5
2006-07-01 6.3
2006-10-01 7.1
2007-01-01 7.2
2007-04-01 6.6
2007-07-01 6.7
2007-10-01 6.3
2008-01-01 6.5
2008-04-01 6.4
2008-07-01 6.6
2008-10-01 6.9
2009-01-01 8.2
2009-04-01 8.8
2009-07-01 9.3
2009-10-01 9.7
2010-01-01 10
2010-04-01 9.8
2010-07-01 9.8
2010-10-01 10.2
2011-01-01 12.2
2011-04-01 12
2011-07-01 12.2
2011-10-01 14
2012-01-01 14.9
2012-04-01 15.3
2012-07-01 16.3
2012-10-01 17.1
2013-01-01 18.1
2013-04-01 16.6
2013-07-01 15.6
2013-10-01 15.1
2014-01-01 15.3
2014-04-01 13.8
2014-07-01 12.5
2014-10-01 13.4
2015-01-01 13.3
2015-04-01 12.2
2015-07-01 11.7
2015-10-01 12.2
2016-01-01 12.6
2016-04-01 10.9
2016-07-01 10.5
2016-10-01 10.6
2017-01-01 9.9
2017-04-01 8.5
2017-07-01 7.9
2017-10-01 7.9
2018-01-01 7.8
2018-04-01 6.5