Quarter	Percent
1998-03-31	14.2
1998-06-30	1.9
1998-09-30	16.9
1998-12-31	15.5
1999-03-31	23.7
1999-06-30	-3.6
1999-09-30	9.9
1999-12-31	20
2000-03-31	24.9
2000-06-30	22.8
2000-09-30	19.3
2000-12-31	26.5
2001-03-31	21.5
2001-06-30	13.8
2001-09-30	25.2
2001-12-31	23.6
2002-03-31	11.4
2002-06-30	8.6
2002-09-30	18.6
2002-12-31	21.8
2003-03-31	17.6
2003-06-30	22.4
2003-09-30	16.7
2003-12-31	9.5
2004-03-31	14.6
2004-06-30	21.3
2004-09-30	12.1
2004-12-31	9.3
2005-03-31	27.4
2005-06-30	19.8
2005-09-30	21.7
2005-12-31	15.9
2006-03-31	22.5
2006-06-30	22.6
2006-09-30	18.4
2006-12-31	15.9
2007-03-31	14.2
2007-06-30	18.2
2007-09-30	31.3
2007-12-31	16.7
2008-03-31	16.9
2008-06-30	13.6
2008-09-30	9.2
2008-12-31	1.1
2009-03-31	3
2009-06-30	-5.4
2009-09-30	-3.2
2009-12-31	-5.6
2010-03-31	-2.7
2010-06-30	-4.6
2010-09-30	-7.4
2010-12-31	-5.2
2011-03-31	0.1
2011-06-30	-0.2
2011-09-30	-0.4
2011-12-31	-5.7
2012-03-31	-8.8
2012-06-30	-4.1
2012-09-30	-3.3
2012-12-31	-6.9
2013-03-31	-3.8
2013-06-30	-1.2
2013-09-30	-4.1
2013-12-31	-9.4
2014-03-31	-8.1
2014-06-30	-1.1
2014-09-30	-0.8
2014-12-31	-4.5
2015-03-31	-0.4
2015-06-30	-8.6
2015-09-30	8
2015-12-31	-0.4
2016-03-31	8.4
2016-06-30	5.9
2016-09-30	4.3
2016-12-31	1.3
2017-03-31	-0.1
2017-06-30	0.7
2017-09-30	-4.1
2017-12-31	-2.3
2018-03-31	0.3
2018-06-30	3.4
2018-09-30	7
2018-12-31	5
2019-03-31	5.6
2019-06-30	5
2019-09-30	5
2019-12-31	-0.5
2020-03-31	16.4
2020-06-30	2.9
2020-09-30	-0.8
2020-12-31	-3.8
2021-03-31	2.4
2021-06-30	-5.5
2021-09-30	-2.2
2021-12-31	3.2
2022-03-31	6.1
2022-06-30	6.3
2022-09-30	0.6
2022-12-31	6.6
2023-03-31	-0.4
2023-06-30	0.5
2023-09-30	6.6
2023-12-31	6