Quarter	Percent
1998-12-31	0.6
1999-03-31	17.1
1999-06-30	22.2
1999-09-30	2.9
1999-12-31	36.2
2000-03-31	13.7
2000-06-30	7.5
2000-09-30	51.3
2000-12-31	14.1
2001-03-31	24.1
2001-06-30	25.1
2001-09-30	-9
2001-12-31	6.7
2002-03-31	-10.5
2002-06-30	-12.7
2002-09-30	14.3
2002-12-31	5.2
2003-03-31	10.7
2003-06-30	8.3
2003-09-30	-0.6
2003-12-31	4.4
2004-03-31	10.5
2004-06-30	11.1
2004-09-30	2.1
2004-12-31	-2.5
2005-03-31	9.9
2005-06-30	-5.7
2005-09-30	-6.3
2005-12-31	-4
2006-03-31	-4
2006-06-30	7.6
2006-09-30	11.8
2006-12-31	13.2
2007-03-31	13
2007-06-30	23.2
2007-09-30	14.9
2007-12-31	0.3
2008-03-31	-14.7
2008-06-30	-18.2
2008-09-30	-16.1
2008-12-31	-14.5
2009-03-31	-11
2009-06-30	-19.2
2009-09-30	-11.6
2009-12-31	-2.6
2010-03-31	6.6
2010-06-30	6.3
2010-09-30	9.2
2010-12-31	7.2
2011-03-31	7
2011-06-30	13.1
2011-09-30	7
2011-12-31	7.2
2012-03-31	2.8
2012-06-30	3.3
2012-09-30	2.8
2012-12-31	9.1
2013-03-31	9.8
2013-06-30	8.1
2013-09-30	9.4
2013-12-31	5.5
2014-03-31	0.2
2014-06-30	-3.9
2014-09-30	-1.4
2014-12-31	4.4
2015-03-31	6.4
2015-06-30	10.4
2015-09-30	5.3
2015-12-31	1.4
2016-03-31	8.6
2016-06-30	1.5
2016-09-30	2.3
2016-12-31	0.8
2017-03-31	-2.8
2017-06-30	6.2
2017-09-30	15.7
2017-12-31	15.8
2018-03-31	8.8
2018-06-30	10.1
2018-09-30	5.8
2018-12-31	10.8
2019-03-31	13
2019-06-30	5.8
2019-09-30	0.9
2019-12-31	-0.2
2020-03-31	9.3
2020-06-30	34.2
2020-09-30	26.8
2020-12-31	32.5
2021-03-31	16.8
2021-06-30	0.9
2021-09-30	12
2021-12-31	0.5
2022-03-31	6
2022-06-30	3.2
2022-09-30	5.3
2022-12-31	0.1
2023-03-31	-4.6
2023-06-30	-3.8
2023-09-30	-8.4
2023-12-31	-3.5