Quarter	Percent
1987-03-31	24.1
1987-06-30	16.2
1987-09-30	-8.3
1987-12-31	-12.4
1988-03-31	-10.2
1988-06-30	31.4
1988-09-30	-16.3
1988-12-31	18.6
1989-03-31	-9.5
1989-06-30	-1.3
1989-09-30	-4.1
1989-12-31	-7.4
1990-03-31	11.2
1990-06-30	3.3
1990-09-30	2.3
1990-12-31	10.5
1991-03-31	25.1
1991-06-30	-0.2
1991-09-30	6.2
1991-12-31	7.1
1992-03-31	11.1
1992-06-30	2.4
1992-09-30	3.1
1992-12-31	12.8
1993-03-31	31.4
1993-06-30	10.1
1993-09-30	17.5
1993-12-31	11.2
1994-03-31	-11.7
1994-06-30	-8.1
1994-09-30	21.6
1994-12-31	-5.7
1995-03-31	12.2
1995-06-30	7.2
1995-09-30	-9.1
1995-12-31	12.8
1996-03-31	24.3
1996-06-30	6.8
1996-09-30	3.7
1996-12-31	-16.8
1997-03-31	41.8
1997-06-30	4.2
1997-09-30	-11.1
1997-12-31	0.1
1998-03-31	21.5
1998-06-30	-8.7
1998-09-30	15.4
1998-12-31	-35.1
1999-03-31	56.7
1999-06-30	-10.7
1999-09-30	8.2
1999-12-31	-5.3
2000-03-31	28.3
2000-06-30	0.1
2000-09-30	-14.7
2000-12-31	1.7
2001-03-31	31.9
2001-06-30	-31.4
2001-09-30	24.2
2001-12-31	-10.9
2002-03-31	8.3
2002-06-30	1.2
2002-09-30	-18.7
2002-12-31	-26.9
2003-03-31	5.8
2003-06-30	-2.3
2003-09-30	14.9
2003-12-31	0.7
2004-03-31	8.9
2004-06-30	-23.6
2004-09-30	6.1
2004-12-31	0.2
2005-03-31	-12.5
2005-06-30	24.5
2005-09-30	-6.9
2005-12-31	-7
2006-03-31	4.6
2006-06-30	21.8
2006-09-30	16.2
2006-12-31	-26
2007-03-31	50.2
2007-06-30	7.4
2007-09-30	-0.9
2007-12-31	-11.4
2008-03-31	-25.2
2008-06-30	-2.3
2008-09-30	1.5
2008-12-31	20.2
2009-03-31	-4.6
2009-06-30	-35.3
2009-09-30	20
2009-12-31	31.9
2010-03-31	11.3
2010-06-30	5.4
2010-09-30	-3.1
2010-12-31	-7.8
2011-03-31	14.9
2011-06-30	-16.4
2011-09-30	50.8
2011-12-31	-6.2
2012-03-31	27
2012-06-30	-4
2012-09-30	-12.9
2012-12-31	-13.1
2013-03-31	-9.2
2013-06-30	4.3
2013-09-30	-15.4
2013-12-31	12.9
2014-03-31	7
2014-06-30	23.2
2014-09-30	-13.4
2014-12-31	-11
2015-03-31	2.6
2015-06-30	-0.8
2015-09-30	26.1
2015-12-31	-9.8
2016-03-31	10
2016-06-30	5.1
2016-09-30	-14.2
2016-12-31	-11.5
2017-03-31	-11.3
2017-06-30	7.8
2017-09-30	3.3
2017-12-31	8.4
2018-03-31	9.3
2018-06-30	-4.7
2018-09-30	-14.1
2018-12-31	-8
2019-03-31	-12.8
2019-06-30	9.8
2019-09-30	28.1
2019-12-31	11.6
2020-03-31	11.3
2020-06-30	14.4
2020-09-30	-28.2
2020-12-31	7.6
2021-03-31	-25.4
2021-06-30	86.3
2021-09-30	-28
2021-12-31	9.8
2022-03-31	55
2022-06-30	-34.3
2022-09-30	39
2022-12-31	-25.6
2023-03-31	-17.9
2023-06-30	-5.7
2023-09-30	29
2023-12-31	44.1