Quarter	Percent, Seasonally Adjusted
1970-01-01	1.5
1970-04-01	1.4
1970-07-01	1.5
1970-10-01	1.5
1971-01-01	2.2
1971-04-01	2.4
1971-07-01	2.6
1971-10-01	2.9
1972-01-01	2.7
1972-04-01	2.6
1972-07-01	2.7
1972-10-01	2.7
1973-01-01	2.6
1973-04-01	2.4
1973-07-01	2.4
1973-10-01	2.3
1974-01-01	2.2
1974-04-01	2.0
1974-07-01	1.9
1974-10-01	1.7
1975-01-01	1.5
1975-04-01	1.7
1975-07-01	1.5
1975-10-01	1.7
1976-01-01	1.7
1976-04-01	1.6
1976-07-01	1.5
1976-10-01	1.6
1977-01-01	1.7
1977-04-01	1.6
1977-07-01	1.8
1977-10-01	2.0
1978-01-01	2.2
1978-04-01	2.3
1978-07-01	2.4
1978-10-01	2.0
1979-01-01	2.2
1979-04-01	2.2
1979-07-01	2.0
1979-10-01	1.8
1980-01-01	2.0
1980-04-01	2.1
1980-07-01	2.0
1980-10-01	2.2
1981-01-01	2.3
1981-04-01	2.4
1981-07-01	2.7
1981-10-01	3.1
1982-01-01	3.2
1982-04-01	3.2
1982-07-01	3.5
1982-10-01	3.4
1983-01-01	3.6
1983-04-01	3.7
1983-07-01	3.8
1983-10-01	3.7
1984-01-01	3.5
1984-04-01	3.3
1984-07-01	3.1
1984-10-01	3.1
1985-01-01	3.0
1985-04-01	3.0
1985-07-01	2.8
1985-10-01	2.7
1986-01-01	2.8
1986-04-01	2.7
1986-07-01	2.6
1986-10-01	2.6
1987-01-01	2.4
1987-04-01	2.3
1987-07-01	2.2
1987-10-01	1.9
1988-01-01	1.9
1988-04-01	1.8
1988-07-01	1.8
1988-10-01	1.6
1989-01-01	1.6
1989-04-01	1.6
1989-07-01	1.4
1989-10-01	1.6
1990-01-01	1.4
1990-04-01	1.5
1990-07-01	1.8
1990-10-01	2.2
1991-01-01	2.4
1991-04-01	2.7
1991-07-01	3.4
1991-10-01	3.9
1992-01-01	4.6
1992-04-01	5.3
1992-07-01	6.0
1992-10-01	6.5
1993-01-01	7.7
1993-04-01	9.0
1993-07-01	9.6
1993-10-01	9.8
1994-01-01	9.7
1994-04-01	9.4
1994-07-01	9.2
1994-10-01	9.0
1995-01-01	8.8
1995-04-01	8.7
1995-07-01	8.7
1995-10-01	9.0
1996-01-01	9.0
1996-04-01	9.5
1996-07-01	9.7
1996-10-01	9.9
1997-01-01	10.3
1997-04-01	10.3
1997-07-01	9.7
1997-10-01	9.1
1998-01-01	8.7
1998-04-01	8.6
1998-07-01	8.0
1998-10-01	7.5
1999-01-01	7.1
1999-04-01	6.8
1999-07-01	6.6
1999-10-01	6.3
2000-01-01	6.1
2000-04-01	5.8
2000-07-01	5.4
2000-10-01	5.1
2001-01-01	5.9
2001-04-01	5.7
2001-07-01	5.8
2001-10-01	6.0
2002-01-01	5.8
2002-04-01	5.8
2002-07-01	6.1
2002-10-01	6.2
2003-01-01	6.2
2003-04-01	6.3
2003-07-01	6.6
2003-10-01	7.1
2004-01-01	7.3
2004-04-01	7.4
2004-07-01	7.4
2004-10-01	7.4
2005-01-01	7.4
2005-04-01	7.9
2005-07-01	7.8
2005-10-01	7.6
2006-01-01	7.5
2006-04-01	7.3
2006-07-01	6.9
2006-10-01	6.5
2007-01-01	6.4
2007-04-01	6.1
2007-07-01	6.0
2007-10-01	6.1
2008-01-01	5.9
2008-04-01	6.0
2008-07-01	6.2
2008-10-01	6.7
2009-01-01	7.4
2009-04-01	8.4
2009-07-01	8.6
2009-10-01	8.8
2010-01-01	8.7
2010-04-01	8.6
2010-07-01	8.3
2010-10-01	7.9
2011-01-01	7.7
2011-04-01	7.5
2011-07-01	7.3
2011-10-01	7.5
2012-01-01	7.5