Quarter	Percent
1998-12-31	9.2
1999-03-31	35
1999-06-30	-3.3
1999-09-30	2
1999-12-31	-0.9
2000-03-31	-22.8
2000-06-30	-18
2000-09-30	-15.5
2000-12-31	2.9
2001-03-31	11.9
2001-06-30	9.3
2001-09-30	37.5
2001-12-31	36.5
2002-03-31	31.2
2002-06-30	37.5
2002-09-30	-20.7
2002-12-31	-15
2003-03-31	-15
2003-06-30	-17.5
2003-09-30	8.2
2003-12-31	-0.5
2004-03-31	16.3
2004-06-30	9.3
2004-09-30	28.8
2004-12-31	4.8
2005-03-31	-1
2005-06-30	38.7
2005-09-30	-13.4
2005-12-31	12.5
2006-03-31	26.7
2006-06-30	2.1
2006-09-30	71
2006-12-31	39
2007-03-31	29.5
2007-06-30	36.8
2007-09-30	-14.7
2007-12-31	-10.6
2008-03-31	-13.9
2008-06-30	-24.3
2008-09-30	-7.2
2008-12-31	-4.8
2009-03-31	-16.3
2009-06-30	-25.1
2009-09-30	-10
2009-12-31	-4.1
2010-03-31	19.5
2010-06-30	15.4
2010-09-30	6.1
2010-12-31	9.8
2011-03-31	-19.9
2011-06-30	-2
2011-09-30	-5.6
2011-12-31	-5.1
2012-03-31	10.8
2012-06-30	8.8
2012-09-30	-0.9
2012-12-31	-4.4
2013-03-31	10.3
2013-06-30	2.8
2013-09-30	10.8
2013-12-31	12
2014-03-31	-4.8
2014-06-30	-1.1
2014-09-30	6.3
2014-12-31	9.3
2015-03-31	20.6
2015-06-30	25.6
2015-09-30	20.3
2015-12-31	12.1
2016-03-31	4.4
2016-06-30	2.4
2016-09-30	0.8
2016-12-31	6
2017-03-31	14.1
2017-06-30	5.2
2017-09-30	2
2017-12-31	-6.8
2018-03-31	-5.6
2018-06-30	-8
2018-09-30	9.4
2018-12-31	7.5
2019-03-31	7.7
2019-06-30	16.9
2019-09-30	4.2
2019-12-31	13.2
2020-03-31	18
2020-06-30	17.9
2020-09-30	34
2020-12-31	36.5
2021-03-31	23.8
2021-06-30	20.7
2021-09-30	3.7
2021-12-31	14.5
2022-03-31	6.2
2022-06-30	18.8
2022-09-30	43.3
2022-12-31	22.5
2023-03-31	41.8
2023-06-30	30.2
2023-09-30	8.9
2023-12-31	0.8