Quarter	Percent
1983-06-30	24.9
1983-09-30	14.6
1983-12-31	89.8
1984-03-31	80.6
1984-06-30	103.3
1984-09-30	119.6
1984-12-31	20.4
1985-03-31	23.9
1985-06-30	18.7
1985-09-30	5.1
1985-12-31	7.8
1986-03-31	4.8
1986-06-30	10.7
1986-09-30	30
1986-12-31	23.9
1987-03-31	23.3
1987-06-30	22
1987-09-30	10.5
1987-12-31	-5.3
1988-03-31	-3.3
1988-06-30	7.8
1988-09-30	3.3
1988-12-31	6.8
1989-03-31	21.2
1989-06-30	28.4
1989-09-30	23.1
1989-12-31	70.6
1990-03-31	72.1
1990-06-30	37.8
1990-09-30	49.7
1990-12-31	12.3
1991-03-31	14.1
1991-06-30	33.2
1991-09-30	15.7
1991-12-31	8.4
1992-03-31	4.9
1992-06-30	-17.5
1992-09-30	1.5
1992-12-31	13.7
1993-03-31	13.5
1993-06-30	30.5
1993-09-30	27.1
1993-12-31	22.9
1994-03-31	27.4
1994-06-30	8.8
1994-09-30	2.6
1994-12-31	12.8
1995-03-31	3.5
1995-06-30	19
1995-09-30	15.9
1995-12-31	13.8
1996-03-31	20.6
1996-06-30	17.7
1996-09-30	20.2
1996-12-31	0.2
1997-03-31	18.2
1997-06-30	17
1997-09-30	22.9
1997-12-31	36.4
1998-03-31	10.9
1998-06-30	13.8
1998-09-30	8.5
1998-12-31	-1.9
1999-03-31	9.9
1999-06-30	6.6
1999-09-30	16.3
1999-12-31	24.4
2000-03-31	15.8
2000-06-30	23.1
2000-09-30	20.3
2000-12-31	25.6
2001-03-31	47.4
2001-06-30	34.8
2001-09-30	23.5
2001-12-31	44.6
2002-03-31	19.3
2002-06-30	25.6
2002-09-30	24.4
2002-12-31	6.6
2003-03-31	38.9
2003-06-30	28.9
2003-09-30	47.2
2003-12-31	46.1
2004-03-31	17.6
2004-06-30	24.6
2004-09-30	28.4
2004-12-31	28.5
2005-03-31	38.7
2005-06-30	35.6
2005-09-30	23.3
2005-12-31	21.7
2006-03-31	15.9
2006-06-30	41.3
2006-09-30	34
2006-12-31	29.2
2007-03-31	23.3
2007-06-30	8.6
2007-09-30	7.2
2007-12-31	15.4
2008-03-31	29.9
2008-06-30	17.8
2008-09-30	10.6
2008-12-31	11.6
2009-03-31	-18.4
2009-06-30	-22.2
2009-09-30	-14.4
2009-12-31	-24.6
2010-03-31	-3.6
2010-06-30	8
2010-09-30	14.2
2010-12-31	19.1
2011-03-31	15.4
2011-06-30	15.7
2011-09-30	13.3
2011-12-31	14.9
2012-03-31	-1
2012-06-30	4.1
2012-09-30	-5.3
2012-12-31	-5
2013-03-31	6.2
2013-06-30	7.7
2013-09-30	10
2013-12-31	7.5
2014-03-31	6.7
2014-06-30	-3.2
2014-09-30	5.2
2014-12-31	-1.9
2015-03-31	-0.6
2015-06-30	-11.2
2015-09-30	-12.4
2015-12-31	-9.8
2016-03-31	-2.1
2016-06-30	29.4
2016-09-30	21
2016-12-31	27.1
2017-03-31	21.1
2017-06-30	2.5
2017-09-30	-4
2017-12-31	-1.1
2018-03-31	3.8
2018-06-30	14.3
2018-09-30	19.8
2018-12-31	32
2019-03-31	11
2019-06-30	3.4
2019-09-30	11.1
2019-12-31	-9.8
2020-03-31	16.9
2020-06-30	17.2
2020-09-30	14.1
2020-12-31	26.2
2021-03-31	-4.6
2021-06-30	-5.3
2021-09-30	-1.7
2021-12-31	7.5
2022-03-31	33.3
2022-06-30	54.2
2022-09-30	70.9
2022-12-31	51.2
2023-03-31	24.4
2023-06-30	2.2