Quarter	Percent
1998-03-31	-15
1998-06-30	0.4
1998-09-30	-4.9
1998-12-31	32.9
1999-03-31	5.5
1999-06-30	-0.1
1999-09-30	14.8
1999-12-31	37.1
2000-03-31	-18.2
2000-06-30	25.5
2000-09-30	-3.7
2000-12-31	25.9
2001-03-31	-9.1
2001-06-30	21
2001-09-30	12.5
2001-12-31	26.6
2002-03-31	1.1
2002-06-30	19.2
2002-09-30	5
2002-12-31	26.1
2003-03-31	-16.2
2003-06-30	11.2
2003-09-30	9.5
2003-12-31	21.7
2004-03-31	2.8
2004-06-30	18.4
2004-09-30	8.9
2004-12-31	25.8
2005-03-31	-14
2005-06-30	21.7
2005-09-30	13.8
2005-12-31	31.7
2006-03-31	1.7
2006-06-30	8.8
2006-09-30	15.4
2006-12-31	46.6
2007-03-31	-9.5
2007-06-30	48.6
2007-09-30	-13.7
2007-12-31	20.2
2008-03-31	-16.3
2008-06-30	-33.3
2008-09-30	10.6
2008-12-31	10.1
2009-03-31	-20.4
2009-06-30	5.2
2009-09-30	-2.1
2009-12-31	31.9
2010-03-31	-24.7
2010-06-30	14.3
2010-09-30	-11.3
2010-12-31	11.2
2011-03-31	-22.3
2011-06-30	-14.6
2011-09-30	13.1
2011-12-31	21.6
2012-03-31	-16.8
2012-06-30	4
2012-09-30	-5.9
2012-12-31	48.9
2013-03-31	-4
2013-06-30	14.4
2013-09-30	5.9
2013-12-31	37.5
2014-03-31	-8.6
2014-06-30	36
2014-09-30	-11
2014-12-31	39.9
2015-03-31	-3
2015-06-30	11.6
2015-09-30	0
2015-12-31	44
2016-03-31	-9.7
2016-06-30	27.8
2016-09-30	5.3
2016-12-31	38.7
2017-03-31	-6.3
2017-06-30	25.2
2017-09-30	6.6
2017-12-31	29.5
2018-03-31	-14.6
2018-06-30	17
2018-09-30	-5.5
2018-12-31	23.1
2019-03-31	-20.7
2019-06-30	1.5
2019-09-30	9.4
2019-12-31	33.4
2020-03-31	8.4
2020-06-30	57.9
2020-09-30	5.5
2020-12-31	43.5
2021-03-31	-9.8
2021-06-30	22.1
2021-09-30	-7.7
2021-12-31	4.5
2022-03-31	-21.3
2022-06-30	4.7
2022-09-30	-0.5
2022-12-31	12.1
2023-03-31	-20.6
2023-06-30	3.6
2023-09-30	-2.7
2023-12-31	20.7