Quarter	Percent
1998-03-31	-34.8
1998-06-30	216.6
1998-09-30	-31.6
1998-12-31	-12.5
1999-03-31	56.2
1999-06-30	0
1999-09-30	-36.3
1999-12-31	-30.7
2000-03-31	-23.8
2000-06-30	-21.5
2000-09-30	14.1
2000-12-31	54.3
2001-03-31	-25
2001-06-30	-20.7
2001-09-30	351.5
2001-12-31	31.9
2002-03-31	-0.9
2002-06-30	33.7
2002-09-30	-86.3
2002-12-31	226.1
2003-03-31	-17.4
2003-06-30	-43.3
2003-09-30	-38.6
2003-12-31	31.5
2004-03-31	93.2
2004-06-30	-3.9
2004-09-30	131.9
2004-12-31	-59.9
2005-03-31	8.7
2005-06-30	233.8
2005-09-30	-73.6
2005-12-31	126.4
2006-03-31	80.8
2006-06-30	7.1
2006-09-30	132.2
2006-12-31	-61.1
2007-03-31	111.7
2007-06-30	118.5
2007-09-30	-82.2
2007-12-31	15
2008-03-31	5.7
2008-06-30	21.8
2008-09-30	-33.6
2008-12-31	-9.4
2009-03-31	-16.3
2009-06-30	-53.1
2009-09-30	84.4
2009-12-31	10.8
2010-03-31	174.2
2010-06-30	-44.5
2010-09-30	5.2
2010-12-31	28.4
2011-03-31	-59.5
2011-06-30	43.8
2011-09-30	-6.5
2011-12-31	80.8
2012-03-31	-10.5
2012-06-30	19.2
2012-09-30	-32.5
2012-12-31	12.1
2013-03-31	33.4
2013-06-30	-8.1
2013-09-30	-8.5
2013-12-31	61.3
2014-03-31	-28.8
2014-06-30	-9.3
2014-09-30	2.8
2014-12-31	98.5
2015-03-31	71.4
2015-06-30	16.2
2015-09-30	2.5
2015-12-31	37.5
2016-03-31	-18.2
2016-06-30	9.4
2016-09-30	-17.3
2016-12-31	41.5
2017-03-31	81.6
2017-06-30	-46.7
2017-09-30	-2.4
2017-12-31	-38.5
2018-03-31	109.4
2018-06-30	-44.2
2018-09-30	108.1
2018-12-31	-40.3
2019-03-31	18.5
2019-06-30	22.1
2019-09-30	3
2019-12-31	-7.8
2020-03-31	127.7
2020-06-30	-12.6
2020-09-30	-14
2020-12-31	68.5
2021-03-31	34.9
2021-06-30	-15.9
2021-09-30	25.1
2021-12-31	174
2022-03-31	-7.9
2022-06-30	52.3
2022-09-30	152.2
2022-12-31	-2.7
2023-03-31	77.1
2023-06-30	-16.6
2023-09-30	13.9
2023-12-31	-23.1