Quarter	Percent, Seasonally adjusted
1986-09-30	17.3
1986-12-31	16.3
1987-03-31	17
1987-06-30	21.8
1987-09-30	23
1987-12-31	24
1988-03-31	26.9
1988-06-30	25.3
1988-09-30	25.3
1988-12-31	21.9
1989-03-31	21
1989-06-30	23.1
1989-09-30	18.8
1989-12-31	15.4
1990-03-31	10.3
1990-06-30	7.8
1990-09-30	7.1
1990-12-31	5.4
1991-03-31	6.3
1991-06-30	5.6
1991-09-30	4.3
1991-12-31	4.1
1992-03-31	2.8
1992-06-30	0.2
1992-09-30	0.4
1992-12-31	2.4
1993-03-31	1.6
1993-06-30	1.4
1993-09-30	3.7
1993-12-31	5.1
1994-03-31	5
1994-06-30	7.4
1994-09-30	9.8
1994-12-31	10.4
1995-03-31	11.6
1995-06-30	10.6
1995-09-30	12
1995-12-31	15.1
1996-03-31	13.9
1996-06-30	12.6
1996-09-30	17.1
1996-12-31	17
1997-03-31	13.5
1997-06-30	17.4
1997-09-30	14.8
1997-12-31	11.9
1998-03-31	16
1998-06-30	16.4
1998-09-30	16
1998-12-31	15.3
1999-03-31	14.4
1999-06-30	14.4
1999-09-30	14.8
1999-12-31	15
2000-03-31	16.7
2000-06-30	15.8
2000-09-30	12.8
2000-12-31	14.4
2001-03-31	15
2001-06-30	16.1
2001-09-30	17.4
2001-12-31	15.6
2002-03-31	16.7
2002-06-30	16.6
2002-09-30	16
2002-12-31	16.3
2003-03-31	13
2003-06-30	11.1
2003-09-30	12.2
2003-12-31	12.1
2004-03-31	13
2004-06-30	13.3
2004-09-30	12.1
2004-12-31	12
2005-03-31	11.3
2005-06-30	10.6
2005-09-30	9.5
2005-12-31	8.1
2006-03-31	7.9
2006-06-30	7.5
2006-09-30	6.1
2006-12-31	5
2007-03-31	3.2
2007-06-30	2.9
2007-09-30	4.5
2007-12-31	4.3
2008-03-31	3.8
2008-06-30	2.2
2008-09-30	-0.5
2008-12-31	-1.2
2009-03-31	-3.7
2009-06-30	-4.2
2009-09-30	-3.6
2009-12-31	-5.1
2010-03-31	-5.5
2010-06-30	-5.2
2010-09-30	-4.8
2010-12-31	-1.6
2011-03-31	-1.3
2011-06-30	-3.1
2011-09-30	-2.4
2011-12-31	-3.3
2012-03-31	-4.5
2012-06-30	-4.7
2012-09-30	-3.4
2012-12-31	-1.3
2013-03-31	1.6
2013-06-30	1.9
2013-09-30	3.8
2013-12-31	4.3
2014-03-31	3.7
2014-06-30	6.7
2014-09-30	7.5
2014-12-31	6.8
2015-03-31	7.2
2015-06-30	7.9
2015-09-30	8.3
2015-12-31	9.1
2016-03-31	10.2
2016-06-30	10.5
2016-09-30	9.7
2016-12-31	8.7
2017-03-31	8.3
2017-06-30	5.5
2017-09-30	2.2
2017-12-31	3.2
2018-03-31	1.1
2018-06-30	1
2018-09-30	3.2
2018-12-31	2.8
2019-03-31	2.7
2019-06-30	2.4
2019-09-30	3
2019-12-31	3.4
2020-03-31	1.2
2020-06-30	-9.9
2020-09-30	-13.6
2020-12-31	-7.4
2021-03-31	-5.3
2021-06-30	-3
2021-09-30	0.9
2021-12-31	5.7
2022-03-31	7.2
2022-06-30	7.7
2022-09-30	8.2
2022-12-31	5.2
2023-03-31	3.9
2023-06-30	4.4
2023-09-30	4.4
2023-12-31	6