Quarter	Percent
2000-09-30	27
2000-12-31	35.2
2001-03-31	128.7
2001-06-30	112.7
2001-09-30	96.4
2001-12-31	28.6
2002-03-31	91.6
2002-06-30	121.8
2002-09-30	43.6
2002-12-31	120.8
2003-03-31	16.4
2003-06-30	147.1
2003-09-30	24.6
2003-12-31	18.7
2004-03-31	-11.3
2004-06-30	14.6
2004-09-30	-8.9
2004-12-31	12.9
2005-03-31	-7.3
2005-06-30	-23.3
2005-09-30	-38
2005-12-31	-33.6
2006-03-31	24.4
2006-06-30	-15.7
2006-09-30	10.8
2006-12-31	157.7
2007-03-31	82.5
2007-06-30	75.6
2007-09-30	77.6
2007-12-31	72
2008-03-31	171.2
2008-06-30	188.8
2008-09-30	322.5
2008-12-31	248.8
2009-03-31	177.1
2009-06-30	143.4
2009-09-30	94.3
2009-12-31	-17.8
2010-03-31	4.8
2010-06-30	-20.9
2010-09-30	-26.8
2010-12-31	-27.2
2011-03-31	-38.4
2011-06-30	-29.8
2011-09-30	-8.4
2011-12-31	-7.4
2012-03-31	-4.5
2012-06-30	11.4
2012-09-30	7.2
2012-12-31	10.4
2013-03-31	18
2013-06-30	-1.3
2013-09-30	1.4
2013-12-31	0
2014-03-31	6.2
2014-06-30	9
2014-09-30	5.3
2014-12-31	-2.8
2015-03-31	12
2015-06-30	3
2015-09-30	-0.5
2015-12-31	8.2
2016-03-31	1.5
2016-06-30	12.7
2016-09-30	17.1
2016-12-31	16
2017-03-31	-4.9
2017-06-30	-3.2
2017-09-30	-6.2
2017-12-31	-9.6
2018-03-31	2.4
2018-06-30	3.5
2018-09-30	9.5
2018-12-31	10.8
2019-03-31	22.1
2019-06-30	15.3
2019-09-30	12.8
2019-12-31	19.5
2020-03-31	20.4
2020-06-30	7.3
2020-09-30	15.5
2020-12-31	-3.1
2021-03-31	-1.9
2021-06-30	2.9
2021-09-30	8.9
2021-12-31	2.8
2022-03-31	-18.3
2022-06-30	-9.9
2022-09-30	-11.8
2022-12-31	1.4
2023-03-31	33.1
2023-06-30	23
2023-09-30	15.7
2023-12-31	28.3