Quarter	Percent
1987-12-31	0.7
1988-03-31	-0.7
1988-06-30	22.2
1988-09-30	75
1988-12-31	57.8
1989-03-31	38.2
1989-06-30	14.7
1989-09-30	-18.3
1989-12-31	-15.6
1990-03-31	-0.2
1990-06-30	2.2
1990-09-30	3.4
1990-12-31	10.7
1991-03-31	1.6
1991-06-30	-0.1
1991-09-30	1
1991-12-31	-2.4
1992-03-31	-1.3
1992-06-30	4.1
1992-09-30	4.3
1992-12-31	13.4
1993-03-31	1
1993-06-30	-0.3
1993-09-30	-3.3
1993-12-31	-4.9
1994-03-31	-0.3
1994-06-30	-11.2
1994-09-30	-12.5
1994-12-31	-13.5
1995-03-31	-2.6
1995-06-30	1.2
1995-09-30	14
1995-12-31	4.5
1996-03-31	13.8
1996-06-30	19.6
1996-09-30	17.1
1996-12-31	41.1
1997-03-31	12.3
1997-06-30	15
1997-09-30	13.9
1997-12-31	5.5
1998-03-31	9.4
1998-06-30	10.4
1998-09-30	1.2
1998-12-31	-0.7
1999-03-31	2.1
1999-06-30	-5.9
1999-09-30	-13.3
1999-12-31	-6.1
2000-03-31	-7.7
2000-06-30	-5.1
2000-09-30	18.2
2000-12-31	-1.2
2001-03-31	-7.7
2001-06-30	-4.8
2001-09-30	-16.8
2001-12-31	-20.2
2002-03-31	-25
2002-06-30	-18
2002-09-30	-16.6
2002-12-31	-7.1
2003-03-31	15.4
2003-06-30	8.6
2003-09-30	2.3
2003-12-31	-4.2
2004-03-31	-5.5
2004-06-30	-1.7
2004-09-30	2.5
2004-12-31	2.5
2005-03-31	-1
2005-06-30	5.7
2005-09-30	15.1
2005-12-31	26.5
2006-03-31	14.3
2006-06-30	11.4
2006-09-30	0.7
2006-12-31	-6
2007-03-31	6.3
2007-06-30	-9.8
2007-09-30	2.4
2007-12-31	-0.4
2008-03-31	10.9
2008-06-30	21.6
2008-09-30	12
2008-12-31	8.9
2009-03-31	-6.8
2009-06-30	-12.1
2009-09-30	-21.4
2009-12-31	-21.5
2010-03-31	-19.5
2010-06-30	-17.1
2010-09-30	-5.5
2010-12-31	-4.4
2011-03-31	-2.3
2011-06-30	-11.4
2011-09-30	-15.2
2011-12-31	-12
2012-03-31	-21.2
2012-06-30	-4.6
2012-09-30	-15.6
2012-12-31	-7.7
2013-03-31	-6
2013-06-30	-25.5
2013-09-30	-14
2013-12-31	5.1
2014-03-31	-16.2
2014-06-30	-11.2
2014-09-30	-2
2014-12-31	-17.5
2015-03-31	-0.3
2015-06-30	9.7
2015-09-30	1.2
2015-12-31	-10.7
2016-03-31	-4.2
2016-06-30	4.3
2016-09-30	-3
2016-12-31	5.1
2017-03-31	-1.4
2017-06-30	18.9
2017-09-30	85.8
2017-12-31	79.6
2018-03-31	93.9
2018-06-30	51.4
2018-09-30	5.5
2018-12-31	16.4
2019-03-31	11.8
2019-06-30	9.1
2019-09-30	12.6
2019-12-31	2.7
2020-03-31	11.5
2020-06-30	4.3
2020-09-30	-18
2020-12-31	-22.9
2021-03-31	-29.1
2021-06-30	-24.4
2021-09-30	-18.1
2021-12-31	-20.3
2022-03-31	-16.8
2022-06-30	-13.5
2022-09-30	13.5
2022-12-31	4.6
2023-03-31	2.1
2023-06-30	1.9
2023-09-30	-22.2
2023-12-31	-11.6