Quarterly Percent
1998-01-01 12.1
1998-04-01 13.6
1998-07-01 11.1
1998-10-01 11
1999-01-01 10.8
1999-04-01 12.5
1999-07-01 9.9
1999-10-01 9.8
2000-01-01 11.4
2000-04-01 12
2000-07-01 9.6
2000-10-01 9.4
2001-01-01 10.4
2001-04-01 10.8
2001-07-01 8.8
2001-10-01 8.8
2002-01-01 9.6
2002-04-01 10.2
2002-07-01 8.2
2002-10-01 8.3
2003-01-01 9.1
2003-04-01 10
2003-07-01 8.2
2003-10-01 8.3
2004-01-01 8.9
2004-04-01 10.6
2004-07-01 8.2
2004-10-01 8.0
2005-01-01 8.9
2005-04-01 9.7
2005-07-01 7.9
2005-10-01 8.1
2006-01-01 8.5
2006-04-01 9.2
2006-07-01 7.6
2006-10-01 7.3
2007-01-01 7.7
2007-04-01 8.1
2007-07-01 6.8
2007-10-01 6.4
2008-01-01 6.9
2008-04-01 7.6
2008-07-01 6.2
2008-10-01 6.2
2009-01-01 6.9
2009-04-01 8.6
2009-07-01 7.4
2009-10-01 7.6
2010-01-01 8.0
2010-04-01 8.9
2010-07-01 7.0
2010-10-01 6.9
2011-01-01 8.0
2011-04-01 8.3
2011-07-01 6.4
2011-10-01 6.0
2012-01-01 7.2
2012-04-01 8.0
2012-07-01 7.0
2012-10-01 6.4
2013-01-01 7.9
2013-04-01 8.2
2013-07-01 6.9
2013-10-01 7.4
2014-01-01 8.3
2014-04-01 9.0
2014-07-01 7.2
2014-10-01 7.7
2015-01-01 9.0
2015-04-01 10.3
2015-07-01 8.4
2015-10-01 8.3
2016-01-01 9.1
2016-04-01 10.0
2016-07-01 7.8
2016-10-01 7.8
2017-01-01 8.8
2017-04-01 9.9
2017-07-01 8.0
2017-10-01 7.3
2018-01-01 8.9
2018-04-01 8.0