Quarter	Percent
1998-12-31	10.1
1999-03-31	8.3
1999-06-30	2.8
1999-09-30	4.2
1999-12-31	-2.2
2000-03-31	1.3
2000-06-30	0.9
2000-09-30	1.5
2000-12-31	2.3
2001-03-31	1.4
2001-06-30	2.9
2001-09-30	1
2001-12-31	-2.9
2002-03-31	-4.2
2002-06-30	-5.7
2002-09-30	-6.7
2002-12-31	4.2
2003-03-31	1.5
2003-06-30	3
2003-09-30	2.9
2003-12-31	-3.6
2004-03-31	2.6
2004-06-30	3.7
2004-09-30	9.4
2004-12-31	5.7
2005-03-31	9
2005-06-30	12.4
2005-09-30	12
2005-12-31	13.8
2006-03-31	9
2006-06-30	7.1
2006-09-30	1.9
2006-12-31	5.2
2007-03-31	4.3
2007-06-30	5.4
2007-09-30	28.4
2007-12-31	26.6
2008-03-31	30.4
2008-06-30	23.5
2008-09-30	2.1
2008-12-31	-1.4
2009-03-31	-7.7
2009-06-30	-16.7
2009-09-30	-20.4
2009-12-31	-19.8
2010-03-31	-18
2010-06-30	-9.5
2010-09-30	-6.2
2010-12-31	-6.9
2011-03-31	-6
2011-06-30	-9.1
2011-09-30	-6.5
2011-12-31	-6.3
2012-03-31	-5.3
2012-06-30	-3.8
2012-09-30	-4.3
2012-12-31	-4.4
2013-03-31	-5.3
2013-06-30	-2.9
2013-09-30	-3.2
2013-12-31	1.1
2014-03-31	3.3
2014-06-30	4.1
2014-09-30	4
2014-12-31	6.1
2015-03-31	5.9
2015-06-30	7.4
2015-09-30	8.8
2015-12-31	8.2
2016-03-31	10.5
2016-06-30	11.3
2016-09-30	7.5
2016-12-31	6.2
2017-03-31	2.7
2017-06-30	1.7
2017-09-30	4.7
2017-12-31	2.9
2018-03-31	4.5
2018-06-30	0.4
2018-09-30	-1.3
2018-12-31	1.1
2019-03-31	1.2
2019-06-30	2.9
2019-09-30	3.1
2019-12-31	0.6
2020-03-31	4.2
2020-06-30	10.7
2020-09-30	7
2020-12-31	11.9
2021-03-31	6.9
2021-06-30	-1.1
2021-09-30	4.3
2021-12-31	7.9
2022-03-31	8.7
2022-06-30	7.4
2022-09-30	7.2
2022-12-31	-2.8
2023-03-31	-6.5
2023-06-30	-5.3
2023-09-30	-7.2
2023-12-31	-7.8