Quarter	Percent, Seasonally Adjusted
1994-01-01	13.2
1994-04-01	13.6
1994-07-01	13.7
1994-10-01	14.2
1995-01-01	13.7
1995-04-01	13.5
1995-07-01	12.7
1995-10-01	12.5
1996-01-01	11.8
1996-04-01	11.4
1996-07-01	11.1
1996-10-01	11.1
1997-01-01	11.5
1997-04-01	11.5
1997-07-01	12.2
1997-10-01	12.1
1998-01-01	12.0
1998-04-01	12.2
1998-07-01	12.9
1998-10-01	13.3
1999-01-01	14.7
1999-04-01	15.9
1999-07-01	16.9
1999-10-01	17.9
2000-01-01	18.4
2000-04-01	19.0
2000-07-01	18.8
2000-10-01	18.8
2001-01-01	19.2
2001-04-01	19.3
2001-07-01	19.3
2001-10-01	19.3
2002-01-01	18.9
2002-04-01	18.8
2002-07-01	18.6
2002-10-01	18.4
2003-01-01	17.9
2003-04-01	17.2
2003-07-01	17.3
2003-10-01	17.9
2004-01-01	18.7
2004-04-01	18.6
2004-07-01	17.9
2004-10-01	17.6
2005-01-01	16.9
2005-04-01	16.4
2005-07-01	16.0
2005-10-01	15.6
2006-01-01	14.5
2006-04-01	13.6
2006-07-01	12.9
2006-10-01	12.3
2007-01-01	11.4
2007-04-01	11.2
2007-07-01	11.3
2007-10-01	10.6
2008-01-01	10.1
2008-04-01	10.0
2008-07-01	9.0
2008-10-01	8.9
2009-01-01	10.1
2009-04-01	11.3
2009-07-01	12.7
2009-10-01	14.0
2010-01-01	14.6
2010-04-01	14.5
2010-07-01	14.4
2010-10-01	13.9
2011-01-01	13.4
2011-04-01	13.3
2011-07-01	13.5
2011-10-01	14.0
2012-01-01	14