Quarter	Percent
1988-03-31	2.6
1988-06-30	3.8
1988-09-30	-13.3
1988-12-31	-10.9
1989-03-31	-13.4
1989-06-30	-8.1
1989-09-30	2
1989-12-31	-3.1
1990-03-31	4
1990-06-30	-4
1990-09-30	-1
1990-12-31	-3
1991-03-31	-8.1
1991-06-30	-10
1991-09-30	-16.5
1991-12-31	0.7
1992-03-31	20.8
1992-06-30	21.1
1992-09-30	37.2
1992-12-31	21.3
1993-03-31	17
1993-06-30	26.2
1993-09-30	18.9
1993-12-31	25.8
1994-03-31	20.7
1994-06-30	23.8
1994-09-30	27.8
1994-12-31	24.3
1995-03-31	27.4
1995-06-30	15.7
1995-09-30	9.5
1995-12-31	9.3
1996-03-31	4.8
1996-06-30	10.6
1996-09-30	3.9
1996-12-31	21.9
1997-03-31	-1.4
1997-06-30	7
1997-09-30	23.7
1997-12-31	-2.2
1998-03-31	8.2
1998-06-30	16.4
1998-09-30	-0.4
1998-12-31	8.7
1999-03-31	13.3
1999-06-30	-4.8
1999-09-30	-5.9
1999-12-31	0.4
2000-03-31	-2.5
2000-06-30	3.9
2000-09-30	5.3
2000-12-31	-8.6
2001-03-31	-23.5
2001-06-30	-26.1
2001-09-30	-15.1
2001-12-31	7.8
2002-03-31	37
2002-06-30	40.9
2002-09-30	3.7
2002-12-31	-11.1
2003-03-31	6.2
2003-06-30	-8.9
2003-09-30	15.5
2003-12-31	-1.1
2004-03-31	5.7
2004-06-30	24
2004-09-30	41.6
2004-12-31	42.9
2005-03-31	11.3
2005-06-30	20.9
2005-09-30	-1.8
2005-12-31	3.7
2006-03-31	-2.3
2006-06-30	-13.4
2006-09-30	6.7
2006-12-31	3
2007-03-31	9.1
2007-06-30	11.8
2007-09-30	-1.6
2007-12-31	-3.7
2008-03-31	-16.6
2008-06-30	-14.9
2008-09-30	-0.3
2008-12-31	51.7
2009-03-31	94.3
2009-06-30	90.6
2009-09-30	81.3
2009-12-31	34.5
2010-03-31	35.9
2010-06-30	23.1
2010-09-30	21.3
2010-12-31	18.4
2011-03-31	1.3
2011-06-30	1.1
2011-09-30	7.9
2011-12-31	10.8
2012-03-31	14.5
2012-06-30	20.9
2012-09-30	9.9
2012-12-31	13.7
2013-03-31	16.4
2013-06-30	16.4
2013-09-30	3.1
2013-12-31	-0.6
2014-03-31	1.1
2014-06-30	0.5
2014-09-30	12.7
2014-12-31	10
2015-03-31	7.2
2015-06-30	9.3
2015-09-30	5.4
2015-12-31	6.1
2016-03-31	3.2
2016-06-30	11
2016-09-30	4.6
2016-12-31	1.2
2017-03-31	5.6
2017-06-30	-3
2017-09-30	5.4
2017-12-31	13.3
2018-03-31	1.4
2018-06-30	0.6
2018-09-30	-7.5
2018-12-31	-12.2
2019-03-31	-8.6
2019-06-30	-3
2019-09-30	-7.2
2019-12-31	-6
2020-03-31	-0.1
2020-06-30	8.2
2020-09-30	26.2
2020-12-31	31.8
2021-03-31	36.5
2021-06-30	21
2021-09-30	8.7
2021-12-31	7.7
2022-03-31	-2.9
2022-06-30	-2.5
2022-09-30	-4
2022-12-31	9.1
2023-03-31	15.8
2023-06-30	10.1
2023-09-30	12.5
2023-12-31	10.8