Quarter	Percent, Seasonally Adjusted
1975-01-01	0.1
1975-04-01	0.3
1975-07-01	0.5
1975-10-01	0.7
1976-01-01	0.8
1976-04-01	0.7
1976-07-01	0.6
1976-10-01	0.5
1977-01-01	0.4
1977-04-01	0.4
1977-07-01	0.3
1977-10-01	0.3
1978-01-01	0.3
1978-04-01	0.3
1978-07-01	0.3
1978-10-01	0.4
1979-01-01	0.4
1979-04-01	0.3
1979-07-01	0.3
1979-10-01	0.2
1980-01-01	0.2
1980-04-01	0.2
1980-07-01	0.2
1980-10-01	0.2
1981-01-01	0.2
1981-04-01	0.2
1981-07-01	0.2
1981-10-01	0.2
1982-01-01	0.3
1982-04-01	0.4
1982-07-01	0.5
1982-10-01	0.6
1983-01-01	0.8
1983-04-01	0.9
1983-07-01	0.9
1983-10-01	0.9
1984-01-01	1.0
1984-04-01	1.1
1984-07-01	1.1
1984-10-01	1.0
1985-01-01	1.0
1985-04-01	0.9
1985-07-01	0.8
1985-10-01	0.8
1986-01-01	0.8
1986-04-01	0.7
1986-07-01	0.7
1986-10-01	0.7
1987-01-01	0.7
1987-04-01	0.7
1987-07-01	0.7
1987-10-01	0.7
1988-01-01	0.6
1988-04-01	0.6
1988-07-01	0.6
1988-10-01	0.5
1989-01-01	0.5
1989-04-01	0.5
1989-07-01	0.5
1989-10-01	0.4
1990-01-01	0.4
1990-04-01	0.4
1990-07-01	0.5
1990-10-01	0.7
1991-01-01	1.4
1991-04-01	1.6
1991-07-01	1.7
1991-10-01	1.9
1992-01-01	2.3
1992-04-01	2.6
1992-07-01	2.9
1992-10-01	3.1
1993-01-01	3.3
1993-04-01	3.5
1993-07-01	3.8
1993-10-01	3.9
1994-01-01	3.8
1994-04-01	3.7
1994-07-01	3.6
1994-10-01	3.5
1995-01-01	3.4
1995-04-01	3.2
1995-07-01	3.0
1995-10-01	3.1
1996-01-01	3.2
1996-04-01	3.5
1996-07-01	3.5
1996-10-01	3.7
1997-01-01	4.0
1997-04-01	3.9
1997-07-01	4.0
1997-10-01	3.8
1998-01-01	3.6
1998-04-01	3.4
1998-07-01	3.2
1998-10-01	3.1
1999-01-01	2.9
1999-04-01	2.9
1999-07-01	2.8
1999-10-01	2.7
2000-01-01	2.6
2000-04-01	2.5
2000-07-01	2.5
2000-10-01	2.5
2001-01-01	2.3
2001-04-01	2.3
2001-07-01	2.2
2001-10-01	2.2
2002-01-01	2.6
2002-04-01	2.8
2002-07-01	3.0
2002-10-01	3.2
2003-01-01	3.6
2003-04-01	3.9
2003-07-01	4.0
2003-10-01	4.1
2004-01-01	4.1
2004-04-01	4.1
2004-07-01	4.2
2004-10-01	4.2
2005-01-01	4.2
2005-04-01	4.2
2005-07-01	4.2
2005-10-01	4.1
2006-01-01	3.9
2006-04-01	3.8
2006-07-01	3.7
2006-10-01	3.7
2007-01-01	3.6
2007-04-01	3.5
2007-07-01	3.3
2007-10-01	3.3
2008-01-01	3.3
2008-04-01	3.2
2008-07-01	3.1
2008-10-01	3.2
2009-01-01	3.5
2009-04-01	3.9
2009-07-01	4.3
2009-10-01	4.6
2010-01-01	4.5
2010-04-01	4.1
2010-07-01	4.4
2010-10-01	4.0
2011-01-01	3.8
2011-04-01	3.4
2011-07-01	3.9
2011-10-01	3.8