Quarter	Percent
1998-12-31	-0.6
1999-03-31	-4.6
1999-06-30	-18.7
1999-09-30	-31.5
1999-12-31	-4.9
2000-03-31	-15
2000-06-30	75.4
2000-09-30	90.8
2000-12-31	19
2001-03-31	36.5
2001-06-30	-21.8
2001-09-30	-14.5
2001-12-31	-13.7
2002-03-31	-41.4
2002-06-30	-10.8
2002-09-30	-4.8
2002-12-31	-21.6
2003-03-31	49.3
2003-06-30	6.3
2003-09-30	-13.5
2003-12-31	33.2
2004-03-31	6.8
2004-06-30	12.5
2004-09-30	20.4
2004-12-31	50.6
2005-03-31	38.3
2005-06-30	49
2005-09-30	108.4
2005-12-31	31.9
2006-03-31	26.6
2006-06-30	22.9
2006-09-30	-18.4
2006-12-31	-18.8
2007-03-31	2.4
2007-06-30	30.9
2007-09-30	19.8
2007-12-31	8.4
2008-03-31	13.4
2008-06-30	-36.5
2008-09-30	-0.6
2008-12-31	35.3
2009-03-31	-0.1
2009-06-30	14.3
2009-09-30	3.7
2009-12-31	-21.9
2010-03-31	-12.2
2010-06-30	25.6
2010-09-30	30.1
2010-12-31	93.7
2011-03-31	77
2011-06-30	45.1
2011-09-30	21.8
2011-12-31	-13.5
2012-03-31	-19
2012-06-30	-0.1
2012-09-30	-14.9
2012-12-31	27.5
2013-03-31	45.7
2013-06-30	11.3
2013-09-30	47
2013-12-31	-1.3
2014-03-31	-11.7
2014-06-30	7
2014-09-30	-9.1
2014-12-31	8.1
2015-03-31	3.9
2015-06-30	3.5
2015-09-30	30.4
2015-12-31	30.3
2016-03-31	-23.1
2016-06-30	-20.9
2016-09-30	-8.7
2016-12-31	-10.4
2017-03-31	55.6
2017-06-30	63.2
2017-09-30	18.2
2017-12-31	17.9
2018-03-31	7.9
2018-06-30	-20
2018-09-30	-16.1
2018-12-31	1.9
2019-03-31	-10.8
2019-06-30	3.2
2019-09-30	-17.2
2019-12-31	-28
2020-03-31	-12.9
2020-06-30	15.6
2020-09-30	54.3
2020-12-31	45.3
2021-03-31	53.1
2021-06-30	35.1
2021-09-30	-1
2021-12-31	-8.5
2022-03-31	8
2022-06-30	-3.9
2022-09-30	15.9
2022-12-31	-1
2023-03-31	-7.2
2023-06-30	-10.9
2023-09-30	-16.4
2023-12-31	0.6