Quarter	Percent
1998-12-31	36.9
1999-03-31	4.5
1999-06-30	-7.2
1999-09-30	-2.6
1999-12-31	-17
2000-03-31	6.6
2000-06-30	19.9
2000-09-30	14.4
2000-12-31	29.8
2001-03-31	9.3
2001-06-30	-0.9
2001-09-30	17.3
2001-12-31	11.8
2002-03-31	1.7
2002-06-30	0.9
2002-09-30	-6.3
2002-12-31	-4.2
2003-03-31	-4.3
2003-06-30	3.5
2003-09-30	-6.5
2003-12-31	4.5
2004-03-31	10.3
2004-06-30	18.3
2004-09-30	36.5
2004-12-31	39.7
2005-03-31	41.6
2005-06-30	19.4
2005-09-30	13.3
2005-12-31	12.9
2006-03-31	26.1
2006-06-30	31.3
2006-09-30	33.7
2006-12-31	24.4
2007-03-31	37.5
2007-06-30	60.5
2007-09-30	57.2
2007-12-31	50.2
2008-03-31	24.6
2008-06-30	-2.5
2008-09-30	10.5
2008-12-31	7.8
2009-03-31	8.8
2009-06-30	21.5
2009-09-30	3.3
2009-12-31	-13
2010-03-31	-5.7
2010-06-30	-5.7
2010-09-30	-15.6
2010-12-31	8.1
2011-03-31	-0.1
2011-06-30	-1.8
2011-09-30	16.9
2011-12-31	12.2
2012-03-31	11.4
2012-06-30	4.7
2012-09-30	5.2
2012-12-31	2.9
2013-03-31	8.7
2013-06-30	11.9
2013-09-30	15.2
2013-12-31	9
2014-03-31	10.5
2014-06-30	13.3
2014-09-30	10.1
2014-12-31	1.5
2015-03-31	-0.2
2015-06-30	-2.9
2015-09-30	-3.7
2015-12-31	-1.8
2016-03-31	0.4
2016-06-30	10.9
2016-09-30	9.9
2016-12-31	16.3
2017-03-31	20.1
2017-06-30	10.7
2017-09-30	8.6
2017-12-31	17.5
2018-03-31	9.7
2018-06-30	2.5
2018-09-30	1.1
2018-12-31	12.3
2019-03-31	-4
2019-06-30	0.9
2019-09-30	0.3
2019-12-31	-15.4
2020-03-31	18.7
2020-06-30	-1.8
2020-09-30	4.3
2020-12-31	7.8
2021-03-31	-9.1
2021-06-30	7.9
2021-09-30	13.9
2021-12-31	12.4
2022-03-31	13.4
2022-06-30	15.7
2022-09-30	18.4
2022-12-31	14.8
2023-03-31	11
2023-06-30	13.5
2023-09-30	3.5
2023-12-31	13.5