Quarter	Percent, Seasonally Adjusted
1982-01-01	11.6
1982-04-01	12.4
1982-07-01	13.3
1982-10-01	14.3
1983-01-01	13.2
1983-04-01	13.7
1983-07-01	14.1
1983-10-01	14.6
1984-01-01	15.1
1984-04-01	15.4
1984-07-01	15.6
1984-10-01	16.0
1985-01-01	16.5
1985-04-01	16.7
1985-07-01	17.0
1985-10-01	17.0
1986-01-01	16.8
1986-04-01	16.8
1986-07-01	16.8
1986-10-01	16.8
1987-01-01	16.7
1987-04-01	16.7
1987-07-01	16.5
1987-10-01	16.5
1988-01-01	16.5
1988-04-01	16.3
1988-07-01	16.2
1988-10-01	15.8
1989-01-01	15.4
1989-04-01	15.0
1989-07-01	14.5
1989-10-01	14.1
1990-01-01	13.6
1990-04-01	13.2
1990-07-01	13.3
1990-10-01	13.6
1991-01-01	14.1
1991-04-01	14.7
1991-07-01	15.0
1991-10-01	15.1
1992-01-01	15.2
1992-04-01	15.2
1992-07-01	15.5
1992-10-01	15.7
1993-01-01	15.8
1993-04-01	15.8
1993-07-01	15.5
1993-10-01	15.4
1994-01-01	15.1
1994-04-01	14.7
1994-07-01	14.1
1994-10-01	13.5
1995-01-01	12.7
1995-04-01	12.2
1995-07-01	12.1
1995-10-01	12.1
1996-01-01	12.0
1996-04-01	11.8
1996-07-01	11.6
1996-10-01	11.1
1997-01-01	10.6
1997-04-01	10.2
1997-07-01	9.6
1997-10-01	9.0
1998-01-01	8.3
1998-04-01	7.8
1998-07-01	7.3
1998-10-01	6.8
1999-01-01	6.3
1999-04-01	5.9
1999-07-01	5.4
1999-10-01	5.1
2000-01-01	4.6
2000-04-01	4.4
2000-07-01	4.0
2000-10-01	3.7
2001-01-01	3.8
2001-04-01	3.7
2001-07-01	4.1
2001-10-01	4.1
2002-01-01	4.3
2002-04-01	4.3
2002-07-01	4.3
2002-10-01	4.9
2003-01-01	4.5
2003-04-01	4.5
2003-07-01	4.8
2003-10-01	4.5
2004-01-01	4.8
2004-04-01	4.4
2004-07-01	4.2
2004-10-01	4.4
2005-01-01	4.2
2005-04-01	4.6
2005-07-01	4.4
2005-10-01	4.3
2006-01-01	4.4
2006-04-01	4.4
2006-07-01	4.6
2006-10-01	4.3
2007-01-01	4.5
2007-04-01	4.5
2007-07-01	4.4
2007-10-01	4.8
2008-01-01	4.9
2008-04-01	5.5
2008-07-01	6.9
2008-10-01	7.9
2009-01-01	10.3
2009-04-01	11.9
2009-07-01	12.5
2009-10-01	12.8
2010-01-01	13.0
2010-04-01	13.5
2010-07-01	13.7
2010-10-01	14.5
2011-01-01	14.2
2011-04-01	14.3
2011-07-01	14.7
2011-10-01	14.7
2012-01-01	14.5