Quarter	Percent, Seasonally adjusted
1964-03-31	8.7
1964-06-30	9.8
1964-09-30	20
1964-12-31	19.9
1965-03-31	41.6
1965-06-30	30.4
1965-09-30	14.8
1965-12-31	9.3
1966-03-31	-11.6
1966-06-30	-14
1966-09-30	-10
1966-12-31	-11.4
1967-03-31	-5.4
1967-06-30	-3.5
1967-09-30	5.1
1967-12-31	10.1
1968-03-31	6.5
1968-06-30	24.2
1968-09-30	2.9
1968-12-31	-2
1969-03-31	-6.4
1969-06-30	-20.4
1969-09-30	-12.2
1969-12-31	-13.5
1970-03-31	1.3
1970-06-30	1.4
1970-09-30	3
1970-12-31	9.3
1971-03-31	0.2
1971-06-30	6.9
1971-09-30	35.2
1971-12-31	64
1972-03-31	84.1
1972-06-30	123.4
1972-09-30	90.5
1972-12-31	75.9
1973-03-31	70.7
1973-06-30	44.6
1973-09-30	47.2
1973-12-31	51.3
1974-03-31	45.8
1974-06-30	45.7
1974-09-30	35.8
1974-12-31	8.7
1975-03-31	0.5
1975-06-30	-3.3
1975-09-30	-2.2
1975-12-31	-1.4
1976-03-31	1.5
1976-06-30	-1.3
1976-09-30	-1.4
1976-12-31	14.4
1977-03-31	9.1
1977-06-30	12.8
1977-09-30	14.9
1977-12-31	10.1
1978-03-31	18.4
1978-06-30	25.3
1978-09-30	26.9
1978-12-31	29.2
1979-03-31	31
1979-06-30	33.1
1979-09-30	36.9
1979-12-31	41.9
1980-03-31	40.2
1980-06-30	36.7
1980-09-30	31.2
1980-12-31	23.5
1981-03-31	22.5
1981-06-30	19.3
1981-09-30	18.5
1981-12-31	22.9
1982-03-31	19.6
1982-06-30	18.2
1982-09-30	20.6
1982-12-31	19.8
1983-03-31	20.8
1983-06-30	24.2
1983-09-30	25.7
1983-12-31	20.7
1984-03-31	23.3
1984-06-30	19.4
1984-09-30	14.7
1984-12-31	18.3
1985-03-31	21.9
1985-06-30	25.7
1985-09-30	23.7
1985-12-31	22.8
1986-03-31	20.8
1986-06-30	23.6
1986-09-30	33
1986-12-31	40.3
1987-03-31	39.5
1987-06-30	41.5
1987-09-30	38.6
1987-12-31	29.8
1988-03-31	26
1988-06-30	21.9
1988-09-30	21.6
1988-12-31	24.8
1989-03-31	28.1
1989-06-30	26.6
1989-09-30	26.3
1989-12-31	26.5
1990-03-31	27
1990-06-30	27.1
1990-09-30	23.5
1990-12-31	19.9
1991-03-31	15.1
1991-06-30	12.2
1991-09-30	10.4
1991-12-31	8.4
1992-03-31	5.4
1992-06-30	6.9
1992-09-30	5.7
1992-12-31	4.3
1993-03-31	7.9
1993-06-30	5.3
1993-09-30	7.5
1993-12-31	10.5
1994-03-31	6
1994-06-30	6.1
1994-09-30	6.7
1994-12-31	9
1995-03-31	13
1995-06-30	14.4
1995-09-30	15.6
1995-12-31	15.1
1996-03-31	16
1996-06-30	15.7
1996-09-30	14.5
1996-12-31	10.5
1997-03-31	17.4
1997-06-30	20.9
1997-09-30	18.9
1997-12-31	22.7
1998-03-31	16.8
1998-06-30	15
1998-09-30	16.7
1998-12-31	9.9
1999-03-31	8.6
1999-06-30	10.4
1999-09-30	5.3
1999-12-31	12.1
2000-03-31	14.6
2000-06-30	12.4
2000-09-30	18
2000-12-31	19.2
2001-03-31	17.7
2001-06-30	16.3
2001-09-30	11.1
2001-12-31	4.1
2002-03-31	1.8
2002-06-30	2.7
2002-09-30	5.7
2002-12-31	4.2
2003-03-31	4.2
2003-06-30	4.4
2003-09-30	2.9
2003-12-31	9.5
2004-03-31	12.4
2004-06-30	13.5
2004-09-30	18.8
2004-12-31	18
2005-03-31	17.4
2005-06-30	14
2005-09-30	12.9
2005-12-31	12.7
2006-03-31	19.3
2006-06-30	29.8
2006-09-30	25.2
2006-12-31	23.2
2007-03-31	21.5
2007-06-30	17.3
2007-09-30	26.8
2007-12-31	27.9
2008-03-31	24.4
2008-06-30	29.5
2008-09-30	34.7
2008-12-31	50.8
2009-03-31	55.6
2009-06-30	35.9
2009-09-30	23.5
2009-12-31	7.5
2010-03-31	0.6
2010-06-30	3.1
2010-09-30	-2.6
2010-12-31	-7.2
2011-03-31	-7.1
2011-06-30	-4.6
2011-09-30	-2.7
2011-12-31	-4.9
2012-03-31	-12.5
2012-06-30	-17.8
2012-09-30	-17.6
2012-12-31	-8.1
2013-03-31	-5.6
2013-06-30	-3.1
2013-09-30	-0.1
2013-12-31	-10.9
2014-03-31	-15.4
2014-06-30	-15.9
2014-09-30	-19
2014-12-31	-15.9
2015-03-31	-9