Quarter	Percent, Seasonally Adjusted
1992-04-01	13.6
1992-07-01	14.1
1992-10-01	13.8
1993-01-01	13.3
1993-04-01	14.3
1993-07-01	13.6
1993-10-01	15.1
1994-01-01	14.7
1994-04-01	14.4
1994-07-01	14.4
1994-10-01	14.1
1995-01-01	13.6
1995-04-01	13.0
1995-07-01	13.3
1995-10-01	13.4
1996-01-01	13.0
1996-04-01	12.7
1996-07-01	12.0
1996-10-01	11.8
1997-01-01	11.5
1997-04-01	11.0
1997-07-01	10.7
1997-10-01	10.2
1998-01-01	9.9
1998-04-01	9.9
1998-07-01	10.2
1998-10-01	10.8
1999-01-01	11.9
1999-04-01	12.9
1999-07-01	13.8
1999-10-01	14.8
2000-01-01	15.6
2000-04-01	16.2
2000-07-01	16.3
2000-10-01	16.7
2001-01-01	17.5
2001-04-01	18.2
2001-07-01	18.4
2001-10-01	19.0
2002-01-01	19.5
2002-04-01	19.9
2002-07-01	20.3
2002-10-01	20.2
2003-01-01	19.8
2003-04-01	19.5
2003-07-01	19.8
2003-10-01	19.6
2004-01-01	19.9
2004-04-01	19.3
2004-07-01	18.7
2004-10-01	18.3
2005-01-01	18.2
2005-04-01	18.3
2005-07-01	17.7
2005-10-01	16.9
2006-01-01	15.5
2006-04-01	14.3
2006-07-01	13.4
2006-10-01	12.3
2007-01-01	10.8
2007-04-01	9.8
2007-07-01	9.4
2007-10-01	8.7
2008-01-01	7.5
2008-04-01	7.3
2008-07-01	7.0
2008-10-01	7.0
2009-01-01	7.6
2009-04-01	8.0
2009-07-01	8.5
2009-10-01	8.8
2010-01-01	9.8
2010-04-01	9.6
2010-07-01	9.5
2010-10-01	9.6
2011-01-01	9.4
2011-04-01	9.6
2011-07-01	9.7
2011-10-01	10.0
2012-01-01	10.1