Quarter	Percent
1998-12-31	5.4
1999-03-31	31.2
1999-06-30	-1.7
1999-09-30	-3.4
1999-12-31	-8.9
2000-03-31	-23.8
2000-06-30	-28.3
2000-09-30	-17.1
2000-12-31	1.3
2001-03-31	0.9
2001-06-30	1.1
2001-09-30	42.7
2001-12-31	37.2
2002-03-31	47.1
2002-06-30	67.6
2002-09-30	-30.1
2002-12-31	-12.3
2003-03-31	-16.2
2003-06-30	-32.4
2003-09-30	-1.6
2003-12-31	-21.6
2004-03-31	-3
2004-06-30	10.6
2004-09-30	54.2
2004-12-31	14.6
2005-03-31	-0.7
2005-06-30	35.5
2005-09-30	-21.3
2005-12-31	21.3
2006-03-31	37.8
2006-06-30	3.7
2006-09-30	78.6
2006-12-31	15
2007-03-31	19.7
2007-06-30	43
2007-09-30	-24.7
2007-12-31	-1.3
2008-03-31	-17.1
2008-06-30	-28.3
2008-09-30	-0.4
2008-12-31	-6.2
2009-03-31	-11.5
2009-06-30	-30.3
2009-09-30	-10
2009-12-31	-5.4
2010-03-31	27.4
2010-06-30	32.8
2010-09-30	15.4
2010-12-31	19.8
2011-03-31	-25.7
2011-06-30	-5.8
2011-09-30	-8.5
2011-12-31	-0.4
2012-03-31	21.4
2012-06-30	15.9
2012-09-30	6.8
2012-12-31	-5.2
2013-03-31	4.7
2013-06-30	-1.9
2013-09-30	5.9
2013-12-31	16
2014-03-31	-0.9
2014-06-30	-1.2
2014-09-30	1.7
2014-12-31	7.1
2015-03-31	33.5
2015-06-30	42
2015-09-30	41.9
2015-12-31	29.4
2016-03-31	7.6
2016-06-30	5.9
2016-09-30	0.4
2016-12-31	1.1
2017-03-31	23.5
2017-06-30	3.2
2017-09-30	7.5
2017-12-31	-12.7
2018-03-31	-9.5
2018-06-30	-8.5
2018-09-30	10.6
2018-12-31	9.8
2019-03-31	-4.8
2019-06-30	15.8
2019-09-30	-2.9
2019-12-31	8.3
2020-03-31	27.5
2020-06-30	17.3
2020-09-30	12.1
2020-12-31	30.3
2021-03-31	14.3
2021-06-30	13.2
2021-09-30	24.4
2021-12-31	40.4
2022-03-31	27.6
2022-06-30	48.1
2022-09-30	76.5
2022-12-31	36.2
2023-03-31	60.4
2023-06-30	38
2023-09-30	13.1
2023-12-31	6.6