Quarter	Percent
1997-09-30	5.2
1997-12-31	3
1998-03-31	5.6
1998-06-30	4.7
1998-09-30	5.7
1998-12-31	6.5
1999-03-31	5.7
1999-06-30	4.7
1999-09-30	4.3
1999-12-31	5.5
2000-03-31	8.8
2000-06-30	13
2000-09-30	17.2
2000-12-31	12.8
2001-03-31	11.8
2001-06-30	9.9
2001-09-30	7
2001-12-31	8.5
2002-03-31	5.2
2002-06-30	3.3
2002-09-30	3.7
2002-12-31	7.4
2003-03-31	8.5
2003-06-30	11.1
2003-09-30	9.1
2003-12-31	7.1
2004-03-31	6.7
2004-06-30	5.2
2004-09-30	9
2004-12-31	8
2005-03-31	11.2
2005-06-30	15.9
2005-09-30	16.3
2005-12-31	17.7
2006-03-31	17.2
2006-06-30	16
2006-09-30	18
2006-12-31	18.5
2007-03-31	18.4
2007-06-30	17.6
2007-09-30	16.7
2007-12-31	16.5
2008-03-31	14.5
2008-06-30	13.3
2008-09-30	8.4
2008-12-31	3.7
2009-03-31	2.6
2009-06-30	-1.5
2009-09-30	-3.3
2009-12-31	-2.4
2010-03-31	-4.2
2010-06-30	-4
2010-09-30	-3.4
2010-12-31	-3.2
2011-03-31	-2.4
2011-06-30	-1.5
2011-09-30	-1.8
2011-12-31	-2.8
2012-03-31	-2.8
2012-06-30	-3.7
2012-09-30	-3.1
2012-12-31	-2.7
2013-03-31	-2.5
2013-06-30	-3.2
2013-09-30	-2.1
2013-12-31	-0.6
2014-03-31	-1.5
2014-06-30	0.1
2014-09-30	-0.2
2014-12-31	-1.5
2015-03-31	-0.2
2015-06-30	-0.7
2015-09-30	0.3
2015-12-31	0.9
2016-03-31	2.2
2016-06-30	3.8
2016-09-30	3.9
2016-12-31	3.2
2017-03-31	3.2
2017-06-30	3.3
2017-09-30	2.8
2017-12-31	3.9
2018-03-31	2.7
2018-06-30	2.5
2018-09-30	3.1
2018-12-31	4.6
2019-03-31	4.9
2019-06-30	5.5
2019-09-30	5.9
2019-12-31	2.9
2020-03-31	8.2
2020-06-30	10.5
2020-09-30	8.3
2020-12-31	9.5
2021-03-31	3.6
2021-06-30	0.4
2021-09-30	-0.4
2021-12-31	-0.5
2022-03-31	-0.4
2022-06-30	-0.6
2022-09-30	1.1
2022-12-31	0.7
2023-03-31	-0.8
2023-06-30	-1.3
2023-09-30	-1.2
2023-12-31	-0.8