Quarter	Percent
1998-03-31	429
1998-06-30	-11
1998-09-30	-62.5
1998-12-31	-92
1999-03-31	367.2
1999-06-30	738.7
1999-09-30	16.2
1999-12-31	221.9
2000-03-31	-14.4
2000-06-30	170.9
2000-09-30	-8.4
2000-12-31	3.6
2001-03-31	133.6
2001-06-30	32.5
2001-09-30	-9.5
2001-12-31	-24.6
2002-03-31	93.7
2002-06-30	-19.9
2002-09-30	-33.2
2002-12-31	-15.3
2003-03-31	120.3
2003-06-30	-5.9
2003-09-30	86.1
2003-12-31	60.2
2004-03-31	487.4
2004-06-30	21
2004-09-30	100.5
2004-12-31	-74.3
2005-03-31	95
2005-06-30	152.5
2005-09-30	-22.1
2005-12-31	224.6
2006-03-31	38.8
2006-06-30	35.6
2006-09-30	32.3
2006-12-31	39.2
2007-03-31	376
2007-06-30	110.9
2007-09-30	131.6
2007-12-31	-22.4
2008-03-31	89.8
2008-06-30	-77.3
2008-09-30	226.2
2008-12-31	-96.1
2009-03-31	137.9
2009-06-30	-13.1
2009-09-30	8.8
2009-12-31	61.4
2010-03-31	11.4
2010-06-30	47.2
2010-09-30	-18.1
2010-12-31	21.3
2011-03-31	-41.6
2011-06-30	154.9
2011-09-30	-2.1
2011-12-31	-33.8
2012-03-31	67.5
2012-06-30	45.3
2012-09-30	-8.8
2012-12-31	33.3
2013-03-31	113.6
2013-06-30	-22.9
2013-09-30	41.5
2013-12-31	-1
2014-03-31	18.9
2014-06-30	57.1
2014-09-30	-1.1
2014-12-31	-6.6
2015-03-31	43.7
2015-06-30	57.9
2015-09-30	1.8
2015-12-31	-9.8
2016-03-31	88.7
2016-06-30	39.2
2016-09-30	-23.4
2016-12-31	-4.9
2017-03-31	30
2017-06-30	16.3
2017-09-30	-10.8
2017-12-31	34.6
2018-03-31	-3.3
2018-06-30	-33.4
2018-09-30	12.6
2018-12-31	114.7
2019-03-31	-28.6
2019-06-30	-6.7
2019-09-30	33.8
2019-12-31	-5
2020-03-31	63.2
2020-06-30	-31.4
2020-09-30	29.2
2020-12-31	10.9
2021-03-31	-13.6
2021-06-30	-17.6
2021-09-30	33.8
2021-12-31	3
2022-03-31	1.6
2022-06-30	0.5
2022-09-30	22.7
2022-12-31	-36.5
2023-03-31	26.4
2023-06-30	22.3
2023-09-30	28.6
2023-12-31	29.2