Quarter	Percent, Seasonally adjusted
1978-03-31	45.8
1978-06-30	37.1
1978-09-30	17
1978-12-31	21.4
1979-03-31	13
1979-06-30	15.2
1979-09-30	10.5
1979-12-31	11
1980-03-31	8.8
1980-06-30	14.3
1980-09-30	9.2
1980-12-31	2
1981-03-31	5
1981-06-30	-0.1
1981-09-30	12.9
1981-12-31	4.1
1982-03-31	6.7
1982-06-30	12.3
1982-09-30	5.4
1982-12-31	19.6
1983-03-31	17.5
1983-06-30	14.5
1983-09-30	14.1
1983-12-31	17.3
1984-03-31	24.9
1984-06-30	23.9
1984-09-30	26.7
1984-12-31	21.2
1985-03-31	2.6
1985-06-30	-6.7
1985-09-30	-5.9
1985-12-31	-8.5
1986-03-31	-5.5
1986-06-30	3.5
1986-09-30	4
1986-12-31	-4.6
1987-03-31	12.5
1987-06-30	8
1987-09-30	3.9
1987-12-31	8.2
1988-03-31	5.3
1988-06-30	15.6
1988-09-30	20.2
1988-12-31	36.9
1989-03-31	35.3
1989-06-30	33.9
1989-09-30	40.1
1989-12-31	40.6
1990-03-31	37.6
1990-06-30	42.3
1990-09-30	27.8
1990-12-31	23.2
1991-03-31	15.7
1991-06-30	5
1991-09-30	7.6
1991-12-31	5.5
1992-03-31	9.8
1992-06-30	12.1
1992-09-30	18.1
1992-12-31	9.5
1993-03-31	-2.2
1993-06-30	-1.3
1993-09-30	-9.6
1993-12-31	-4.4
1994-03-31	4.3
1994-06-30	4.3
1994-09-30	4.3
1994-12-31	2.7
1995-03-31	14.2
1995-06-30	8.3
1995-09-30	17
1995-12-31	26.6
1996-03-31	14.7
1996-06-30	11.6
1996-09-30	14.9
1996-12-31	9.7
1997-03-31	12.2
1997-06-30	51.3
1997-09-30	44.2
1997-12-31	54
1998-03-31	43.6
1998-06-30	0.3
1998-09-30	-0.5
1998-12-31	-4.7
1999-03-31	-2.8
1999-06-30	3.4
1999-09-30	10.6
1999-12-31	2
2000-03-31	14.4
2000-06-30	24.6
2000-09-30	17.8
2000-12-31	31.2
2001-03-31	19.3
2001-06-30	19.7
2001-09-30	16.6
2001-12-31	4.7
2002-03-31	2.7
2002-06-30	0.3
2002-09-30	-1.8
2002-12-31	0.8
2003-03-31	0.3
2003-06-30	2.6
2003-09-30	8.6
2003-12-31	14
2004-03-31	16.3
2004-06-30	21.3
2004-09-30	10.6
2004-12-31	5.4
2005-03-31	12
2005-06-30	11.5
2005-09-30	21.3
2005-12-31	36.5
2006-03-31	24.4
2006-06-30	2.5
2006-09-30	3
2006-12-31	14.7
2007-03-31	6.8
2007-06-30	33.7
2007-09-30	30.9
2007-12-31	-4.8
2008-03-31	3.8
2008-06-30	-11.5
2008-09-30	3.3
2008-12-31	12.2
2009-03-31	28.1
2009-06-30	20.8
2009-09-30	9
2009-12-31	30.9
2010-03-31	18.9
2010-06-30	36.5
2010-09-30	20.9
2010-12-31	4.3
2011-03-31	-2.7
2011-06-30	-7.6
2011-09-30	-1.6
2011-12-31	-9
2012-03-31	-6.5
2012-06-30	-4.5
2012-09-30	-2.9
2012-12-31	11
2013-03-31	16.6
2013-06-30	9.9
2013-09-30	13.2
2013-12-31	8.1