Quarter	Percent
1998-03-31	-13.8
1998-06-30	22.9
1998-09-30	0.3
1998-12-31	-4.7
1999-03-31	9.6
1999-06-30	-17.5
1999-09-30	-12.9
1999-12-31	-3.1
2000-03-31	-19.9
2000-06-30	39.8
2000-09-30	0.1
2000-12-31	5.8
2001-03-31	6.1
2001-06-30	-17.7
2001-09-30	-6.3
2001-12-31	44.4
2002-03-31	-25.7
2002-06-30	10.4
2002-09-30	-12.4
2002-12-31	2.2
2003-03-31	14.7
2003-06-30	-19.4
2003-09-30	3.7
2003-12-31	25.6
2004-03-31	0.2
2004-06-30	6.8
2004-09-30	1.9
2004-12-31	39.4
2005-03-31	6.4
2005-06-30	3.6
2005-09-30	-11.1
2005-12-31	55.2
2006-03-31	-14.4
2006-06-30	6.5
2006-09-30	-6.2
2006-12-31	52.5
2007-03-31	-9.9
2007-06-30	49.2
2007-09-30	-47.5
2007-12-31	35.4
2008-03-31	-9.4
2008-06-30	-21.7
2008-09-30	-9.6
2008-12-31	22.3
2009-03-31	-6.1
2009-06-30	-5.5
2009-09-30	22.4
2009-12-31	14.9
2010-03-31	13.9
2010-06-30	-3
2010-09-30	22
2010-12-31	40.1
2011-03-31	-34.4
2011-06-30	7.6
2011-09-30	-9.5
2011-12-31	-8.4
2012-03-31	-12.5
2012-06-30	40.8
2012-09-30	-24.8
2012-12-31	63.9
2013-03-31	4.4
2013-06-30	-10.8
2013-09-30	16.7
2013-12-31	4.2
2014-03-31	-9.5
2014-06-30	9.1
2014-09-30	1.2
2014-12-31	30.3
2015-03-31	-9.6
2015-06-30	20.6
2015-09-30	33.6
2015-12-31	18.3
2016-03-31	-42.6
2016-06-30	33.8
2016-09-30	3.6
2016-12-31	26.2
2017-03-31	-10.3
2017-06-30	32.1
2017-09-30	-8.4
2017-12-31	17.9
2018-03-31	-16.5
2018-06-30	-8.1
2018-09-30	10.3
2018-12-31	43.2
2019-03-31	-28.7
2019-06-30	2.5
2019-09-30	-3.2
2019-12-31	10.9
2020-03-31	22.4
2020-06-30	75.6
2020-09-30	27.4
2020-12-31	16.1
2021-03-31	-9.2
2021-06-30	17.1
2021-09-30	-18
2021-12-31	17.5
2022-03-31	6.3
2022-06-30	0.4
2022-09-30	8.6
2022-12-31	-15.5
2023-03-31	-8.8
2023-06-30	0.5
2023-09-30	-1.8
2023-12-31	2.8