Quarter	Percent, Seasonally adjusted
1983-09-30	19.4
1983-12-31	16.7
1984-03-31	12.7
1984-06-30	15.5
1984-09-30	19.1
1984-12-31	15.3
1985-03-31	19.1
1985-06-30	15.8
1985-09-30	13
1985-12-31	16.1
1986-03-31	19.6
1986-06-30	22.1
1986-09-30	22.4
1986-12-31	24.5
1987-03-31	23.3
1987-06-30	22
1987-09-30	30.6
1987-12-31	34.5
1988-03-31	28.9
1988-06-30	26.4
1988-09-30	24.9
1988-12-31	19.3
1989-03-31	24.1
1989-06-30	30.4
1989-09-30	27
1989-12-31	31.4
1990-03-31	30.8
1990-06-30	27.4
1990-09-30	21.7
1990-12-31	14.1
1991-03-31	6.9
1991-06-30	2.5
1991-09-30	0.6
1991-12-31	1.4
1992-03-31	2.8
1992-06-30	3.6
1992-09-30	5
1992-12-31	0.3
1993-03-31	0.1
1993-06-30	-2.7
1993-09-30	-2.1
1993-12-31	3.4
1994-03-31	5
1994-06-30	8.1
1994-09-30	6.7
1994-12-31	5.2
1995-03-31	9.1
1995-06-30	10.2
1995-09-30	13.3
1995-12-31	18.7
1996-03-31	16.7
1996-06-30	18.8
1996-09-30	21.1
1996-12-31	18.7
1997-03-31	21.6
1997-06-30	20.7
1997-09-30	21.3
1997-12-31	21
1998-03-31	17.5
1998-06-30	17.9
1998-09-30	16.1
1998-12-31	12.5
1999-03-31	9
1999-06-30	3.4
1999-09-30	-4.5
1999-12-31	-3
2000-03-31	2.1
2000-06-30	6.9
2000-09-30	12.2
2000-12-31	11
2001-03-31	7.8
2001-06-30	2.4
2001-09-30	5.6
2001-12-31	2.1
2002-03-31	-1.9
2002-06-30	1.4
2002-09-30	1
2002-12-31	5
2003-03-31	5.2
2003-06-30	6.2
2003-09-30	0.1
2003-12-31	-0.1
2004-03-31	3.5
2004-06-30	4.1
2004-09-30	7
2004-12-31	9.8
2005-03-31	13.3
2005-06-30	13.8
2005-09-30	16.8
2005-12-31	21.4
2006-03-31	19.2
2006-06-30	24.7
2006-09-30	28.6
2006-12-31	23.1
2007-03-31	25.1
2007-06-30	23.9
2007-09-30	25
2007-12-31	24.8
2008-03-31	21.7
2008-06-30	20.9
2008-09-30	20.9
2008-12-31	35.6
2009-03-31	41.8
2009-06-30	31.2
2009-09-30	23
2009-12-31	8.1
2010-03-31	0
2010-06-30	0.3
2010-09-30	-2.7
2010-12-31	-7
2011-03-31	-5.3
2011-06-30	-4.8
2011-09-30	-7.3
2011-12-31	-9.9
2012-03-31	-15.5
2012-06-30	-17.9
2012-09-30	-15.5
2012-12-31	-10.5
2013-03-31	-8
2013-06-30	-6.5
2013-09-30	-2.5
2013-12-31	-8.9
2014-03-31	-9.9
2014-06-30	-11.7
2014-09-30	-16.7
2014-12-31	-13.5
2015-03-31	-12.5
2015-06-30	-10.9
2015-09-30	-12.5
2015-12-31	-11.1
2016-03-31	-9.5
2016-06-30	-4.2
2016-09-30	2.8
2016-12-31	5.4
2017-03-31	10.4
2017-06-30	7.3
2017-09-30	7.6
2017-12-31	5.5
2018-03-31	0.1
2018-06-30	-2
2018-09-30	-4.6
2018-12-31	-2.2
2019-03-31	-1.5
2019-06-30	-1.2
2019-09-30	2.5
2019-12-31	3.5
2020-03-31	11.7
2020-06-30	17.9
2020-09-30	15.6
2020-12-31	12.5
2021-03-31	4.2
2021-06-30	-0.3
2021-09-30	1
2021-12-31	5.5
2022-03-31	7.3
2022-06-30	6.2
2022-09-30	11
2022-12-31	-1.5
2023-03-31	-1.4
2023-06-30	1.5
2023-09-30	-9.4
2023-12-31	-0.2