Quarter	Percent
1998-12-31	5.7
1999-03-31	1.5
1999-06-30	0
1999-09-30	-9.4
1999-12-31	-11.6
2000-03-31	-8.3
2000-06-30	-13.8
2000-09-30	-9.2
2000-12-31	-12.3
2001-03-31	-19.7
2001-06-30	-15.3
2001-09-30	-9.1
2001-12-31	-6.3
2002-03-31	-9.1
2002-06-30	-6.8
2002-09-30	-19.7
2002-12-31	-10.3
2003-03-31	-15.8
2003-06-30	-12.6
2003-09-30	-4.6
2003-12-31	-16
2004-03-31	-5.8
2004-06-30	-3.4
2004-09-30	-1
2004-12-31	-13.5
2005-03-31	-0.5
2005-06-30	11.9
2005-09-30	8.1
2005-12-31	35.7
2006-03-31	8.5
2006-06-30	3.5
2006-09-30	26.1
2006-12-31	34
2007-03-31	46.6
2007-06-30	31
2007-09-30	44
2007-12-31	219.9
2008-03-31	240.4
2008-06-30	211.9
2008-09-30	164.7
2008-12-31	0.2
2009-03-31	-21.1
2009-06-30	-17.3
2009-09-30	-52.3
2009-12-31	-55.5
2010-03-31	-53.6
2010-06-30	-48.9
2010-09-30	-7.1
2010-12-31	-2.6
2011-03-31	1.5
2011-06-30	-3.2
2011-09-30	-12.1
2011-12-31	-2.5
2012-03-31	-12.2
2012-06-30	-13.9
2012-09-30	-14.8
2012-12-31	-28.6
2013-03-31	16.7
2013-06-30	2.7
2013-09-30	0.7
2013-12-31	20.7
2014-03-31	-3.9
2014-06-30	-1.9
2014-09-30	5.3
2014-12-31	1.3
2015-03-31	0.4
2015-06-30	12.2
2015-09-30	9.6
2015-12-31	-2.1
2016-03-31	-12.8
2016-06-30	-1.7
2016-09-30	3.7
2016-12-31	30.1
2017-03-31	32.1
2017-06-30	15.2
2017-09-30	25.4
2017-12-31	9.5
2018-03-31	19.5
2018-06-30	27.7
2018-09-30	-2.6
2018-12-31	-5.2
2019-03-31	-11.4
2019-06-30	-11.9
2019-09-30	3.8
2019-12-31	11.6
2020-03-31	3.5
2020-06-30	-7.9
2020-09-30	7.4
2020-12-31	9.7
2021-03-31	6.4
2021-06-30	14.1
2021-09-30	-8
2021-12-31	-20.4
2022-03-31	9.3
2022-06-30	12.3
2022-09-30	16.8
2022-12-31	23.7
2023-03-31	-1.3
2023-06-30	-14
2023-09-30	-13.3
2023-12-31	-7.4