Quarter	Percent
1998-03-31	10.2
1998-06-30	5.4
1998-09-30	5.5
1998-12-31	11.7
1999-03-31	7.9
1999-06-30	16.3
1999-09-30	0.3
1999-12-31	3.2
2000-03-31	20.8
2000-06-30	17.3
2000-09-30	1.6
2000-12-31	20.7
2001-03-31	-1.1
2001-06-30	5.7
2001-09-30	9.2
2001-12-31	3.1
2002-03-31	0.8
2002-06-30	4.9
2002-09-30	8.9
2002-12-31	16
2003-03-31	4.5
2003-06-30	9.8
2003-09-30	-2.9
2003-12-31	0.2
2004-03-31	3.1
2004-06-30	5.8
2004-09-30	18.5
2004-12-31	9
2005-03-31	6.8
2005-06-30	31.6
2005-09-30	12.2
2005-12-31	14.3
2006-03-31	6.7
2006-06-30	15.9
2006-09-30	23
2006-12-31	11.4
2007-03-31	9.9
2007-06-30	15
2007-09-30	26.1
2007-12-31	23.3
2008-03-31	23.9
2008-06-30	2.7
2008-09-30	18.8
2008-12-31	0.2
2009-03-31	0.7
2009-06-30	-9.1
2009-09-30	-13.8
2009-12-31	-8
2010-03-31	-5.8
2010-06-30	-5.5
2010-09-30	-4.9
2010-12-31	-5.3
2011-03-31	-2.3
2011-06-30	-5.3
2011-09-30	0.1
2011-12-31	-2.5
2012-03-31	-8.5
2012-06-30	-3.5
2012-09-30	-2
2012-12-31	-6.5
2013-03-31	-1.2
2013-06-30	-5.7
2013-09-30	0
2013-12-31	-4.6
2014-03-31	-3.3
2014-06-30	-1.8
2014-09-30	2.1
2014-12-31	-4
2015-03-31	5.6
2015-06-30	-3.8
2015-09-30	2.2
2015-12-31	-1.4
2016-03-31	7
2016-06-30	4.3
2016-09-30	2.7
2016-12-31	0
2017-03-31	2.8
2017-06-30	6
2017-09-30	2.3
2017-12-31	-0.9
2018-03-31	6.2
2018-06-30	-2
2018-09-30	3.6
2018-12-31	4
2019-03-31	6.1
2019-06-30	5.3
2019-09-30	1.5
2019-12-31	1.9
2020-03-31	26
2020-06-30	9.1
2020-09-30	-1.9
2020-12-31	-1.1
2021-03-31	0.7
2021-06-30	-3.2
2021-09-30	-1.4
2021-12-31	2.6
2022-03-31	6.3
2022-06-30	0.4
2022-09-30	6.8
2022-12-31	-3.8
2023-03-31	-1.2
2023-06-30	-5.2
2023-09-30	5
2023-12-31	-3.1