Quarter	Percent
1998-12-31	16.1
1999-03-31	12.7
1999-06-30	18.9
1999-09-30	18.8
1999-12-31	11.2
2000-03-31	7.8
2000-06-30	-1
2000-09-30	-1.2
2000-12-31	-0.9
2001-03-31	0.1
2001-06-30	-0.6
2001-09-30	-1
2001-12-31	-2.2
2002-03-31	-5.6
2002-06-30	-10.9
2002-09-30	-10.4
2002-12-31	-11
2003-03-31	-8.3
2003-06-30	-6.4
2003-09-30	-10.9
2003-12-31	-15.1
2004-03-31	-11.5
2004-06-30	-10.8
2004-09-30	-9.2
2004-12-31	-2.5
2005-03-31	-3.6
2005-06-30	4.4
2005-09-30	8.1
2005-12-31	18.4
2006-03-31	10.7
2006-06-30	5.2
2006-09-30	6
2006-12-31	-0.6
2007-03-31	5.2
2007-06-30	9.3
2007-09-30	11.5
2007-12-31	7.8
2008-03-31	26.3
2008-06-30	13.8
2008-09-30	10.8
2008-12-31	9.6
2009-03-31	-7.5
2009-06-30	-10.2
2009-09-30	-22.2
2009-12-31	-24.7
2010-03-31	-24.6
2010-06-30	-22.5
2010-09-30	-12.4
2010-12-31	-6.2
2011-03-31	-12.4
2011-06-30	-9.8
2011-09-30	-13.7
2011-12-31	-13.5
2012-03-31	-12.3
2012-06-30	-6
2012-09-30	-5.9
2012-12-31	-3.8
2013-03-31	-0.4
2013-06-30	-6.5
2013-09-30	-0.5
2013-12-31	-4.4
2014-03-31	-2
2014-06-30	4
2014-09-30	8.7
2014-12-31	9.4
2015-03-31	11.3
2015-06-30	13.1
2015-09-30	3.3
2015-12-31	-0.3
2016-03-31	0.1
2016-06-30	-3.4
2016-09-30	-4.2
2016-12-31	-0.2
2017-03-31	-3.8
2017-06-30	9
2017-09-30	13.4
2017-12-31	13.1
2018-03-31	17.2
2018-06-30	7.1
2018-09-30	9.9
2018-12-31	16.6
2019-03-31	13.4
2019-06-30	15.2
2019-09-30	8.5
2019-12-31	-1.4
2020-03-31	9.9
2020-06-30	0.1
2020-09-30	1.6
2020-12-31	-1
2021-03-31	-14.9
2021-06-30	-17.5
2021-09-30	-13.1
2021-12-31	-8.5
2022-03-31	5.6
2022-06-30	12.9
2022-09-30	14.7
2022-12-31	13.3
2023-03-31	-1.6
2023-06-30	-3.9
2023-09-30	-6.3
2023-12-31	-7.6