Quarter	Percent, Seasonally Adjusted
1970-01-01	1.1
1970-04-01	0.9
1970-07-01	1.0
1970-10-01	1.1
1971-01-01	1.2
1971-04-01	1.2
1971-07-01	1.4
1971-10-01	1.8
1972-01-01	2.3
1972-04-01	2.4
1972-07-01	2.5
1972-10-01	2.5
1973-01-01	2.4
1973-04-01	2.5
1973-07-01	2.4
1973-10-01	2.5
1974-01-01	2.7
1974-04-01	2.8
1974-07-01	3.1
1974-10-01	3.4
1975-01-01	5.5
1975-04-01	5.8
1975-07-01	5.7
1975-10-01	6.1
1976-01-01	6.3
1976-04-01	6.2
1976-07-01	6.1
1976-10-01	6.0
1977-01-01	6.0
1977-04-01	6.0
1977-07-01	6.0
1977-10-01	6.0
1978-01-01	5.7
1978-04-01	5.7
1978-07-01	5.8
1978-10-01	5.8
1979-01-01	5.8
1979-04-01	5.8
1979-07-01	5.8
1979-10-01	5.7
1980-01-01	3.9
1980-04-01	4.1
1980-07-01	4.4
1980-10-01	4.7
1981-01-01	5.2
1981-04-01	5.6
1981-07-01	6.0
1981-10-01	6.5
1982-01-01	6.9
1982-04-01	7.4
1982-07-01	7.9
1982-10-01	8.4
1983-01-01	8.2
1983-04-01	8.3
1983-07-01	8.3
1983-10-01	8.3
1984-01-01	8.2
1984-04-01	8.2
1984-07-01	8.0
1984-10-01	7.9
1985-01-01	7.7
1985-04-01	7.5
1985-07-01	7.2
1985-10-01	7.0
1986-01-01	6.8
1986-04-01	6.6
1986-07-01	6.4
1986-10-01	6.4
1987-01-01	6.3
1987-04-01	6.3
1987-07-01	6.3
1987-10-01	6.3
1988-01-01	6.3
1988-04-01	6.3
1988-07-01	6.2
1988-10-01	6.1
1989-01-01	5.9
1989-04-01	5.8
1989-07-01	5.6
1989-10-01	5.4
1990-01-01	5.3
1990-04-01	5.1
1990-07-01	5.0
1990-10-01	4.9
1991-01-01	4.9
1991-04-01	4.8
1991-07-01	4.8
1991-10-01	4.8
1992-01-01	4.7
1992-04-01	4.8
1992-07-01	4.9
1992-10-01	5.1
1993-01-01	5.3
1993-04-01	5.5
1993-07-01	5.7
1993-10-01	5.8
1994-01-01	5.9
1994-04-01	6.1
1994-07-01	6.3
1994-10-01	6.6
1995-01-01	6.9
1995-04-01	7.1
1995-07-01	7.1
1995-10-01	7.0
1996-01-01	6.8
1996-04-01	6.6
1996-07-01	6.3
1996-10-01	6.1
1997-01-01	5.8
1997-04-01	5.6
1997-07-01	5.3
1997-10-01	5.0
1998-01-01	4.7
1998-04-01	4.4
1998-07-01	4.2
1998-10-01	3.9
1999-01-01	3.8
1999-04-01	3.6
1999-07-01	3.5
1999-10-01	3.4
2000-01-01	3.3
2000-04-01	3.1
2000-07-01	3.0
2000-10-01	2.8
2001-01-01	2.6
2001-04-01	2.6
2001-07-01	2.5
2001-10-01	2.6
2002-01-01	2.7
2002-04-01	2.9
2002-07-01	3.2
2002-10-01	3.5
2003-01-01	3.7
2003-04-01	4.0
2003-07-01	4.3
2003-10-01	4.6
2004-01-01	4.9
2004-04-01	5.2
2004-07-01	5.1
2004-10-01	5.2
2005-01-01	5.4
2005-04-01	5.4
2005-07-01	5.2
2005-10-01	5.1
2006-01-01	4.8
2006-04-01	4.4
2006-07-01	4.1
2006-10-01	4.1
2007-01-01	3.9
2007-04-01	3.6
2007-07-01	3.5
2007-10-01	3.3
2008-01-01	3.1
2008-04-01	3.1
2008-07-01	3.0
2008-10-01	3.0
2009-01-01	3.2
2009-04-01	3.5
2009-07-01	3.9
2009-10-01	4.2
2010-01-01	4.5
2010-04-01	4.5
2010-07-01	4.5
2010-10-01	4.4
2011-01-01	4.3
2011-04-01	4.2
2011-07-01	4.4
2011-10-01	4.9
2012-01-01	5.0