Quarter	Percent
1998-03-31	43.3
1998-06-30	26.3
1998-09-30	20.1
1998-12-31	-0.7
1999-03-31	1.8
1999-06-30	-7
1999-09-30	-17.4
1999-12-31	9
2000-03-31	61.8
2000-06-30	0.3
2000-09-30	-12.5
2000-12-31	15
2001-03-31	30.2
2001-06-30	-7.2
2001-09-30	6.2
2001-12-31	-19.2
2002-03-31	15.9
2002-06-30	-3.6
2002-09-30	7.5
2002-12-31	-5.6
2003-03-31	-0.8
2003-06-30	19.4
2003-09-30	-14.8
2003-12-31	-5.1
2004-03-31	2
2004-06-30	-7.2
2004-09-30	-3.6
2004-12-31	26.8
2005-03-31	25.4
2005-06-30	-0.9
2005-09-30	17.7
2005-12-31	20.5
2006-03-31	19.9
2006-06-30	22
2006-09-30	21.3
2006-12-31	-2.5
2007-03-31	27.5
2007-06-30	13.3
2007-09-30	31.9
2007-12-31	1.9
2008-03-31	-2.9
2008-06-30	1.3
2008-09-30	6.4
2008-12-31	18.2
2009-03-31	23.5
2009-06-30	-12.2
2009-09-30	-22.2
2009-12-31	-11.7
2010-03-31	11.5
2010-06-30	-4.6
2010-09-30	-7.4
2010-12-31	15.4
2011-03-31	4.1
2011-06-30	-2.6
2011-09-30	7.7
2011-12-31	-20.6
2012-03-31	30.3
2012-06-30	-7.5
2012-09-30	11.2
2012-12-31	-7.8
2013-03-31	10.4
2013-06-30	-3.7
2013-09-30	6.3
2013-12-31	-19.5
2014-03-31	23
2014-06-30	1
2014-09-30	-4.5
2014-12-31	-14.1
2015-03-31	19.7
2015-06-30	-7.9
2015-09-30	-10.9
2015-12-31	-18.7
2016-03-31	26.2
2016-06-30	24.9
2016-09-30	27
2016-12-31	-8.7
2017-03-31	34.6
2017-06-30	5.8
2017-09-30	6.8
2017-12-31	0.8
2018-03-31	15.6
2018-06-30	-2.2
2018-09-30	-16.4
2018-12-31	-1.2
2019-03-31	7.3
2019-06-30	-4
2019-09-30	20.1
2019-12-31	0.8
2020-03-31	61.8
2020-06-30	-5.1
2020-09-30	-1.5
2020-12-31	10.5
2021-03-31	-2
2021-06-30	-3.8
2021-09-30	13.3
2021-12-31	11.4
2022-03-31	17.9
2022-06-30	-1.3
2022-09-30	108.5
2022-12-31	-55.3
2023-03-31	24.3
2023-06-30	-2.6
2023-09-30	-31.7
2023-12-31	16.9