Quarterly Percent
1993-01-01 11.8
1993-04-01 11.9
1993-07-01 12.2
1993-10-01 12.7
1994-01-01 13
1994-04-01 12.7
1994-07-01 12.6
1994-10-01 13
1995-01-01 12.9
1995-04-01 12.4
1995-07-01 12.5
1995-10-01 12.7
1996-01-01 12.8
1996-04-01 12.5
1996-07-01 12.6
1996-10-01 12.8
1997-01-01 12.8
1997-04-01 12.4
1997-07-01 12.4
1997-10-01 12.6
1998-01-01 12.5
1998-04-01 12
1998-07-01 11.9
1998-10-01 12
1999-01-01 11.7
1999-04-01 11.2
1999-07-01 11
1999-10-01 10.8
2000-01-01 10.7
2000-04-01 10.1
2000-07-01 10
2000-10-01 9.9
2001-01-01 9.8
2001-04-01 9.3
2001-07-01 9.3
2001-10-01 9.5
2002-01-01 9.7
2002-04-01 9.4
2002-07-01 9.6
2002-10-01 9.9
2003-01-01 10.3
2003-04-01 10.1
2003-07-01 9.8
2003-10-01 10
2004-01-01 10.5
2004-04-01 10.3
2004-07-01 9.9
2004-10-01 10.2
2005-01-01 10.4
2005-04-01 9.9
2005-07-01 9.8
2005-10-01 10.1
2006-01-01 10.1
2006-04-01 9.2
2006-07-01 9.0
2006-10-01 9.1
2007-01-01 8.9
2007-04-01 8.3
2007-07-01 8.1
2007-10-01 8.3
2008-01-01 8.3
2008-04-01 8.1
2008-07-01 8.0
2008-10-01 8.5
2009-01-01 9.5
2009-04-01 9.5
2009-07-01 9.6
2009-10-01 10
2010-01-01 10.5
2010-04-01 10.1
2010-07-01 10.0
2010-10-01 10.4
2011-01-01 10.6
2011-04-01 9.9
2011-07-01 10.2
2011-10-01 10.8
2012-01-01 11.5
2012-04-01 11.2
2012-07-01 11.3
2012-10-01 12
2013-01-01 12.5
2013-04-01 12.0
2013-07-01 11.7
2013-10-01 12.2
2014-01-01 12.3
2014-04-01 11.6
2014-07-01 11.5
2014-10-01 11.8
2015-01-01 11.7
2015-04-01 11.0
2015-07-01 10.6
2015-10-01 10.9
2016-01-01 10.9
2016-04-01 10.4
2016-07-01 10.1
2016-10-01 10.1
2017-01-01 10.2
2017-04-01 9.3
2017-07-01 9.2
2017-10-01 9.1
2018-01-01 9.3
2018-04-01 8.5