Quarter	Percent
1988-03-31	-0.5
1988-06-30	14.3
1988-09-30	49.2
1988-12-31	30.5
1989-03-31	45.8
1989-06-30	27.2
1989-09-30	-37
1989-12-31	-13.3
1990-03-31	-45
1990-06-30	-40.1
1990-09-30	-16.8
1990-12-31	-26.1
1991-03-31	12.3
1991-06-30	58.5
1991-09-30	109.4
1991-12-31	48.9
1992-03-31	-3.8
1992-06-30	-41.9
1992-09-30	-64.4
1992-12-31	-35.3
1993-03-31	0.6
1993-06-30	55.3
1993-09-30	96.4
1993-12-31	53.6
1994-03-31	29.5
1994-06-30	-34.5
1994-09-30	-17.7
1994-12-31	-35.8
1995-03-31	-51.2
1995-06-30	6.4
1995-09-30	-10.7
1995-12-31	46.8
1996-03-31	188.7
1996-06-30	79.6
1996-09-30	170
1996-12-31	50.6
1997-03-31	53.3
1997-06-30	86.6
1997-09-30	-15.6
1997-12-31	30.2
1998-03-31	-43.4
1998-06-30	-41.3
1998-09-30	25.7
1998-12-31	-7.1
1999-03-31	46.9
1999-06-30	25.6
1999-09-30	17.3
1999-12-31	25.2
2000-03-31	15.8
2000-06-30	31.9
2000-09-30	-2.7
2000-12-31	-55.2
2001-03-31	-3.8
2001-06-30	16.2
2001-09-30	33.7
2001-12-31	68.5
2002-03-31	-15.9
2002-06-30	-8.6
2002-09-30	-38.6
2002-12-31	50.7
2003-03-31	51.4
2003-06-30	-19.4
2003-09-30	-8.7
2003-12-31	-30.8
2004-03-31	-32.6
2004-06-30	-25.7
2004-09-30	-16.7
2004-12-31	-8.2
2005-03-31	-7.8
2005-06-30	-25.5
2005-09-30	48.5
2005-12-31	49.1
2006-03-31	130
2006-06-30	250.3
2006-09-30	49.5
2006-12-31	28
2007-03-31	-8.6
2007-06-30	-8.6
2007-09-30	-6.8
2007-12-31	-43.7
2008-03-31	-42.1
2008-06-30	-31.2
2008-09-30	-20
2008-12-31	35.5
2009-03-31	5.6
2009-06-30	-27
2009-09-30	68.7
2009-12-31	28.5
2010-03-31	168.6
2010-06-30	92.2
2010-09-30	15.2
2010-12-31	83.9
2011-03-31	6.4
2011-06-30	165.4
2011-09-30	61.7
2011-12-31	2.8
2012-03-31	9.7
2012-06-30	-56.9
2012-09-30	-26
2012-12-31	-4.4
2013-03-31	-14.8
2013-06-30	48.1
2013-09-30	49
2013-12-31	49.6
2014-03-31	35
2014-06-30	35
2014-09-30	-11.2
2014-12-31	5.5
2015-03-31	17.9
2015-06-30	17.8
2015-09-30	27.9
2015-12-31	-5.5
2016-03-31	-12.1
2016-06-30	-12
2016-09-30	-16.2
2016-12-31	11.2
2017-03-31	25.5
2017-06-30	25.5
2017-09-30	13.7
2017-12-31	-16.5
2018-03-31	-21.1
2018-06-30	-21.1
2018-09-30	24
2018-12-31	56.6
2019-03-31	50.5
2019-06-30	59.7
2019-09-30	4.2
2019-12-31	-11
2020-03-31	-9.6
2020-06-30	1
2020-09-30	-18.4
2020-12-31	-11.5
2021-03-31	-4.6
2021-06-30	-41
2021-09-30	13.1
2021-12-31	31.3
2022-03-31	17.5
2022-06-30	60.1
2022-09-30	22.7
2022-12-31	-8.2
2023-03-31	11.6
2023-06-30	44.4
2023-09-30	7.7
2023-12-31	24