Quarter	Percent
1998-03-31	144.1
1998-06-30	49.1
1998-09-30	-23.1
1998-12-31	25.5
1999-03-31	-17.1
1999-06-30	-7.1
1999-09-30	-7
1999-12-31	-33.8
2000-03-31	125.3
2000-06-30	48.7
2000-09-30	-22.9
2000-12-31	10
2001-03-31	13.3
2001-06-30	0.4
2001-09-30	51.4
2001-12-31	-9.4
2002-03-31	-22.5
2002-06-30	-2.4
2002-09-30	12.4
2002-12-31	-0.9
2003-03-31	-22.8
2003-06-30	33.7
2003-09-30	-25.3
2003-12-31	54.5
2004-03-31	-4.1
2004-06-30	76.8
2004-09-30	32.5
2004-12-31	69.7
2005-03-31	1.1
2005-06-30	-10.5
2005-09-30	7.1
2005-12-31	67.2
2006-03-31	57.5
2006-06-30	5.3
2006-09-30	15.3
2006-12-31	25.2
2007-03-31	134.8
2007-06-30	95.5
2007-09-30	6.3
2007-12-31	4.2
2008-03-31	11.4
2008-06-30	-26.8
2008-09-30	75.3
2008-12-31	-5.4
2009-03-31	15.4
2009-06-30	13.9
2009-09-30	-8.5
2009-12-31	-52.8
2010-03-31	58.9
2010-06-30	15.4
2010-09-30	-41.2
2010-12-31	26.9
2011-03-31	15.5
2011-06-30	7.9
2011-09-30	18.3
2011-12-31	7.5
2012-03-31	12.3
2012-06-30	-15.8
2012-09-30	20.4
2012-12-31	-1.4
2013-03-31	39.6
2013-06-30	-5.5
2013-09-30	35.4
2013-12-31	-20.9
2014-03-31	47.1
2014-06-30	4.4
2014-09-30	21.1
2014-12-31	-42.9
2015-03-31	37.3
2015-06-30	-6.3
2015-09-30	16.9
2015-12-31	-38.2
2016-03-31	50.2
2016-06-30	39.4
2016-09-30	12.5
2016-12-31	-22.3
2017-03-31	70.6
2017-06-30	0.7
2017-09-30	4.3
2017-12-31	6.3
2018-03-31	29.7
2018-06-30	-23.3
2018-09-30	-1.1
2018-12-31	61.7
2019-03-31	-30.6
2019-06-30	-6.4
2019-09-30	-3.5
2019-12-31	-18.1
2020-03-31	168.7
2020-06-30	-56.3
2020-09-30	23.3
2020-12-31	-6.7
2021-03-31	35.8
2021-06-30	-13.4
2021-09-30	53.5
2021-12-31	-11.7
2022-03-31	41.2
2022-06-30	-6.3
2022-09-30	68.1
2022-12-31	-22
2023-03-31	23.8
2023-06-30	2.4
2023-09-30	16.1
2023-12-31	12.8