Quarter	Percent, Seasonally adjusted
1980-06-30	17.9
1980-09-30	22
1980-12-31	21.9
1981-03-31	25.5
1981-06-30	29.5
1981-09-30	30.8
1981-12-31	30.7
1982-03-31	24.8
1982-06-30	18.7
1982-09-30	20.8
1982-12-31	26.9
1983-03-31	24.3
1983-06-30	20.4
1983-09-30	20.4
1983-12-31	21
1984-03-31	18.9
1984-06-30	18.4
1984-09-30	17.2
1984-12-31	15.4
1985-03-31	18.7
1985-06-30	17
1985-09-30	15
1985-12-31	17.3
1986-03-31	17.7
1986-06-30	17.7
1986-09-30	18.8
1986-12-31	17
1987-03-31	16.7
1987-06-30	20.9
1987-09-30	20.8
1987-12-31	21.8
1988-03-31	25.1
1988-06-30	23
1988-09-30	22.6
1988-12-31	19.4
1989-03-31	17.9
1989-06-30	20.3
1989-09-30	17.5
1989-12-31	14.2
1990-03-31	11.6
1990-06-30	9.7
1990-09-30	8.8
1990-12-31	9.7
1991-03-31	7.9
1991-06-30	5.6
1991-09-30	6.3
1991-12-31	5.6
1992-03-31	3.8
1992-06-30	1
1992-09-30	0.4
1992-12-31	1.6
1993-03-31	1.7
1993-06-30	2.3
1993-09-30	4.1
1993-12-31	5.8
1994-03-31	5.8
1994-06-30	8.7
1994-09-30	11.3
1994-12-31	11.6
1995-03-31	13
1995-06-30	12.5
1995-09-30	12.2
1995-12-31	14.8
1996-03-31	15.3
1996-06-30	14.7
1996-09-30	18.4
1996-12-31	18.5
1997-03-31	15.7
1997-06-30	18.1
1997-09-30	16.3
1997-12-31	15
1998-03-31	18.7
1998-06-30	18.7
1998-09-30	18.6
1998-12-31	18
1999-03-31	17.2
1999-06-30	16.7
1999-09-30	16.5
1999-12-31	17.5
2000-03-31	19.1
2000-06-30	18.1
2000-09-30	15.3
2000-12-31	16
2001-03-31	16.1
2001-06-30	16.5
2001-09-30	17.1
2001-12-31	16.4
2002-03-31	18
2002-06-30	17.4
2002-09-30	17.2
2002-12-31	17.6
2003-03-31	15.5
2003-06-30	15.1
2003-09-30	16
2003-12-31	14.9
2004-03-31	15.5
2004-06-30	16.2
2004-09-30	15.6
2004-12-31	15.2
2005-03-31	13.8
2005-06-30	12.1
2005-09-30	9.9
2005-12-31	8.3
2006-03-31	7.8
2006-06-30	7.1
2006-09-30	5.2
2006-12-31	4.2
2007-03-31	3.4
2007-06-30	2.8
2007-09-30	4.5
2007-12-31	5.4
2008-03-31	5.1
2008-06-30	4.5
2008-09-30	3.1
2008-12-31	1.7
2009-03-31	-0.5
2009-06-30	-1.1
2009-09-30	-1.2
2009-12-31	-1.9
2010-03-31	-1.4
2010-06-30	-1.7
2010-09-30	-1.8
2010-12-31	0.2
2011-03-31	0.4
2011-06-30	-0.2
2011-09-30	0.1
2011-12-31	-1.4
2012-03-31	-2.3
2012-06-30	-1.9
2012-09-30	-1
2012-12-31	0.5
2013-03-31	2.9
2013-06-30	4.2
2013-09-30	4.9
2013-12-31	4.1
2014-03-31	3.9
2014-06-30	5.6
2014-09-30	6
2014-12-31	6.1
2015-03-31	6.6
2015-06-30	6.8
2015-09-30	7.2
2015-12-31	8
2016-03-31	8.9
2016-06-30	8.9
2016-09-30	8.4
2016-12-31	8.1
2017-03-31	7.9
2017-06-30	6.1
2017-09-30	4.2
2017-12-31	5.1
2018-03-31	3.7
2018-06-30	3.2
2018-09-30	3.9
2018-12-31	3.3
2019-03-31	3.6
2019-06-30	3.3
2019-09-30	2.6
2019-12-31	2.8
2020-03-31	-1.6
2020-06-30	-17.4
2020-09-30	-17.1
2020-12-31	-7.2
2021-03-31	-9.8
2021-06-30	-5
2021-09-30	3.4
2021-12-31	7
2022-03-31	8.1
2022-06-30	9.4
2022-09-30	9
2022-12-31	6
2023-03-31	6.2
2023-06-30	7.1
2023-09-30	7.4
2023-12-31	9.1