Quarter	Percent
1998-03-31	-18.7
1998-06-30	18.6
1998-09-30	2.9
1998-12-31	-2.6
1999-03-31	-0.9
1999-06-30	-7.6
1999-09-30	-11.3
1999-12-31	-9.8
2000-03-31	-18.6
2000-06-30	23.8
2000-09-30	2.3
2000-12-31	9.2
2001-03-31	2.8
2001-06-30	-14
2001-09-30	-24.5
2001-12-31	60.6
2002-03-31	-20.3
2002-06-30	-0.1
2002-09-30	-0.8
2002-12-31	5.7
2003-03-31	6
2003-06-30	-21.2
2003-09-30	12.3
2003-12-31	20.8
2004-03-31	-12.9
2004-06-30	15.7
2004-09-30	-5.7
2004-12-31	41.6
2005-03-31	1.5
2005-06-30	-18.7
2005-09-30	-13.3
2005-12-31	86.6
2006-03-31	-30.2
2006-06-30	2.4
2006-09-30	-17.4
2006-12-31	114.6
2007-03-31	-33.4
2007-06-30	26.8
2007-09-30	-37.2
2007-12-31	85.9
2008-03-31	-33.7
2008-06-30	-8.1
2008-09-30	-22.6
2008-12-31	24.2
2009-03-31	-2.2
2009-06-30	20.7
2009-09-30	9.5
2009-12-31	35
2010-03-31	-1.1
2010-06-30	-5.7
2010-09-30	10.4
2010-12-31	22.1
2011-03-31	-41.9
2011-06-30	13.3
2011-09-30	-13.7
2011-12-31	-3.4
2012-03-31	-13
2012-06-30	32.6
2012-09-30	-12.9
2012-12-31	44
2013-03-31	-16.2
2013-06-30	0.4
2013-09-30	8.9
2013-12-31	22
2014-03-31	-9.6
2014-06-30	0.5
2014-09-30	4.9
2014-12-31	31.7
2015-03-31	-12.5
2015-06-30	14.2
2015-09-30	19.8
2015-12-31	20.7
2016-03-31	-9.8
2016-06-30	34.2
2016-09-30	-29.6
2016-12-31	31.5
2017-03-31	-16.8
2017-06-30	29.2
2017-09-30	-10.6
2017-12-31	28
2018-03-31	-15.7
2018-06-30	12.1
2018-09-30	-2.3
2018-12-31	33.7
2019-03-31	-21.9
2019-06-30	2.6
2019-09-30	15.5
2019-12-31	2.6
2020-03-31	29.9
2020-06-30	68
2020-09-30	10
2020-12-31	16.4
2021-03-31	-14.6
2021-06-30	4.6
2021-09-30	-3.2
2021-12-31	17.5
2022-03-31	-4.5
2022-06-30	-15.5
2022-09-30	-7
2022-12-31	3
2023-03-31	-35.5
2023-06-30	-0.7
2023-09-30	9.4
2023-12-31	22.3