Quarter	Percent
1982-12-31	15.5
1983-03-31	14.8
1983-06-30	12.8
1983-09-30	11.8
1983-12-31	13.4
1984-03-31	13.1
1984-06-30	12.8
1984-09-30	13.9
1984-12-31	14
1985-03-31	13.6
1985-06-30	12.5
1985-09-30	15.9
1985-12-31	16.7
1986-03-31	17.7
1986-06-30	18.3
1986-09-30	16.1
1986-12-31	13
1987-03-31	13.7
1987-06-30	16.6
1987-09-30	17.2
1987-12-31	16.8
1988-03-31	16.8
1988-06-30	16.9
1988-09-30	20.4
1988-12-31	17.5
1989-03-31	14.5
1989-06-30	18.6
1989-09-30	19
1989-12-31	17.3
1990-03-31	16.2
1990-06-30	16.7
1990-09-30	12.7
1990-12-31	7.2
1991-03-31	6.4
1991-06-30	7.8
1991-09-30	6.2
1991-12-31	4
1992-03-31	4.9
1992-06-30	5.7
1992-09-30	4.2
1992-12-31	1.4
1993-03-31	2.4
1993-06-30	4.2
1993-09-30	3.7
1993-12-31	5.1
1994-03-31	7.7
1994-06-30	5.7
1994-09-30	2.2
1994-12-31	3.7
1995-03-31	8.9
1995-06-30	10.2
1995-09-30	7.6
1995-12-31	9.5
1996-03-31	11.7
1996-06-30	10.1
1996-09-30	8.2
1996-12-31	8.9
1997-03-31	13.9
1997-06-30	14.5
1997-09-30	9.4
1997-12-31	9.4
1998-03-31	10.6
1998-06-30	9.7
1998-09-30	8.1
1998-12-31	6.9
1999-03-31	6.1
1999-06-30	4.4
1999-09-30	0
1999-12-31	4.1
2000-03-31	11.1
2000-06-30	9.7
2000-09-30	7
2000-12-31	6.8
2001-03-31	9.5
2001-06-30	8.5
2001-09-30	7.3
2001-12-31	4.9
2002-03-31	4.2
2002-06-30	7.5
2002-09-30	7.5
2002-12-31	7.2
2003-03-31	6.8
2003-06-30	8.6
2003-09-30	6.4
2003-12-31	6
2004-03-31	9.3
2004-06-30	10.1
2004-09-30	8.8
2004-12-31	8.4
2005-03-31	12.5
2005-06-30	12.8
2005-09-30	10.6
2005-12-31	12.8
2006-03-31	14.4
2006-06-30	13.7
2006-09-30	13.7
2006-12-31	11.4
2007-03-31	11.8
2007-06-30	13.9
2007-09-30	14.5
2007-12-31	11.1
2008-03-31	9.2
2008-06-30	10.9
2008-09-30	12.4
2008-12-31	20.3
2009-03-31	22.1
2009-06-30	6.9
2009-09-30	2.2
2009-12-31	6.6
2010-03-31	4.5
2010-06-30	-0.7
2010-09-30	-2.3
2010-12-31	-2.3
2011-03-31	-0.3
2011-06-30	1
2011-09-30	-2.7
2011-12-31	-5.7
2012-03-31	-6.5
2012-06-30	-5
2012-09-30	-0.8
2012-12-31	2.9
2013-03-31	1.4
2013-06-30	0.2
2013-09-30	3.7
2013-12-31	0.2
2014-03-31	-4.1
2014-06-30	-1.6
2014-09-30	-1
2014-12-31	-0.5
2015-03-31	-0.2
2015-06-30	0.1
2015-09-30	-0.8
2015-12-31	0.7
2016-03-31	4
2016-06-30	6.7
2016-09-30	8.6
2016-12-31	5.9
2017-03-31	5
2017-06-30	5.2
2017-09-30	4.7
2017-12-31	2.5
2018-03-31	0
2018-06-30	1
2018-09-30	1.7
2018-12-31	2.8
2019-03-31	2.4
2019-06-30	1.7
2019-09-30	5.3
2019-12-31	6.1
2020-03-31	11
2020-06-30	20.2
2020-09-30	13.8
2020-12-31	7.4
2021-03-31	8.1
2021-06-30	6.8
2021-09-30	6
2021-12-31	5.8
2022-03-31	4.8
2022-06-30	2.3
2022-09-30	6
2022-12-31	0.9
2023-03-31	-4.9
2023-06-30	-0.6
2023-09-30	-2.9
2023-12-31	-1.3