Quarter	Percent
1998-12-31	27
1999-03-31	0.1
1999-06-30	-8
1999-09-30	0.5
1999-12-31	-6.1
2000-03-31	13.9
2000-06-30	29.2
2000-09-30	18.1
2000-12-31	28.8
2001-03-31	30.8
2001-06-30	10.9
2001-09-30	41.2
2001-12-31	41.4
2002-03-31	23.4
2002-06-30	20.5
2002-09-30	16.5
2002-12-31	6.3
2003-03-31	7.4
2003-06-30	40.2
2003-09-30	18.2
2003-12-31	36.8
2004-03-31	52.3
2004-06-30	39.4
2004-09-30	51.3
2004-12-31	43.4
2005-03-31	32.9
2005-06-30	43
2005-09-30	23.2
2005-12-31	21.5
2006-03-31	23.8
2006-06-30	1.4
2006-09-30	12.9
2006-12-31	15
2007-03-31	8.9
2007-06-30	27.7
2007-09-30	37.2
2007-12-31	42.9
2008-03-31	48.5
2008-06-30	22.2
2008-09-30	35.6
2008-12-31	29.4
2009-03-31	26.1
2009-06-30	37.2
2009-09-30	17.9
2009-12-31	-3.5
2010-03-31	-1.3
2010-06-30	-6
2010-09-30	-17.2
2010-12-31	-17.1
2011-03-31	-14.4
2011-06-30	-15.5
2011-09-30	-5.2
2011-12-31	6.6
2012-03-31	-3.6
2012-06-30	2.5
2012-09-30	6.2
2012-12-31	9.4
2013-03-31	13.3
2013-06-30	10.4
2013-09-30	8.2
2013-12-31	2.2
2014-03-31	-2.8
2014-06-30	0.7
2014-09-30	-5.7
2014-12-31	-3.4
2015-03-31	1.5
2015-06-30	-4.7
2015-09-30	-3.7
2015-12-31	-2.7
2016-03-31	-3
2016-06-30	7.7
2016-09-30	8.8
2016-12-31	11.8
2017-03-31	23.2
2017-06-30	10.6
2017-09-30	17.1
2017-12-31	14.9
2018-03-31	-0.2
2018-06-30	3
2018-09-30	-0.8
2018-12-31	9.1
2019-03-31	-0.8
2019-06-30	-2.2
2019-09-30	-0.5
2019-12-31	-7.3
2020-03-31	19.9
2020-06-30	12.9
2020-09-30	13.7
2020-12-31	7.3
2021-03-31	-4.5
2021-06-30	3.1
2021-09-30	7.1
2021-12-31	14.9
2022-03-31	13.4
2022-06-30	13.6
2022-09-30	8.1
2022-12-31	7.6
2023-03-31	6
2023-06-30	3.1
2023-09-30	0.9
2023-12-31	2.7