Quarter	Percent
1998-12-31	-38.7
1999-03-31	-40.6
1999-06-30	4.1
1999-09-30	38.1
1999-12-31	248
2000-03-31	127.7
2000-06-30	71.6
2000-09-30	61.7
2000-12-31	21.8
2001-03-31	56.5
2001-06-30	30.9
2001-09-30	30.5
2001-12-31	20.6
2002-03-31	15.1
2002-06-30	1.5
2002-09-30	-6
2002-12-31	-3.2
2003-03-31	0
2003-06-30	4.1
2003-09-30	34.4
2003-12-31	57.7
2004-03-31	101.5
2004-06-30	114.5
2004-09-30	118.6
2004-12-31	38.3
2005-03-31	5
2005-06-30	26.2
2005-09-30	-0.4
2005-12-31	87.8
2006-03-31	72.5
2006-06-30	47.7
2006-09-30	68.6
2006-12-31	36.4
2007-03-31	85.7
2007-06-30	107.3
2007-09-30	138.5
2007-12-31	106.1
2008-03-31	63.8
2008-06-30	-6.2
2008-09-30	2.2
2008-12-31	-51.6
2009-03-31	-48.8
2009-06-30	-28.4
2009-09-30	-45.5
2009-12-31	37.6
2010-03-31	13.9
2010-06-30	30.3
2010-09-30	21.4
2010-12-31	13
2011-03-31	-3.9
2011-06-30	10.2
2011-09-30	15.3
2011-12-31	-0.9
2012-03-31	29
2012-06-30	12.1
2012-09-30	10.1
2012-12-31	31.1
2013-03-31	39.4
2013-06-30	18.9
2013-09-30	32.7
2013-12-31	23.2
2014-03-31	6.4
2014-06-30	27.2
2014-09-30	16.3
2014-12-31	14.6
2015-03-31	20.2
2015-06-30	20.3
2015-09-30	21.2
2015-12-31	20.1
2016-03-31	28.6
2016-06-30	24.6
2016-09-30	16
2016-12-31	17.6
2017-03-31	7.2
2017-06-30	2.5
2017-09-30	6.4
2017-12-31	16.1
2018-03-31	7.8
2018-06-30	-6.2
2018-09-30	-0.6
2018-12-31	11.7
2019-03-31	3.6
2019-06-30	12.6
2019-09-30	17.6
2019-12-31	-4.1
2020-03-31	18
2020-06-30	9.2
2020-09-30	8.3
2020-12-31	12.5
2021-03-31	-4
2021-06-30	0.5
2021-09-30	1.4
2021-12-31	-0.5
2022-03-31	3.6
2022-06-30	8.9
2022-09-30	6.6
2022-12-31	-5.6
2023-03-31	-0.3
2023-06-30	4.8
2023-09-30	6
2023-12-31	26.6