Quarter	Percent
1999-03-31	5
1999-06-30	3.5
1999-09-30	1.6
1999-12-31	5.6
2000-03-31	4.1
2000-06-30	15.2
2000-09-30	22.1
2000-12-31	16.7
2001-03-31	15.5
2001-06-30	4.6
2001-09-30	-1.5
2001-12-31	1.5
2002-03-31	0.3
2002-06-30	1.7
2002-09-30	4.6
2002-12-31	3.2
2003-03-31	6.2
2003-06-30	5.2
2003-09-30	6.1
2003-12-31	8.8
2004-03-31	9.5
2004-06-30	11.4
2004-09-30	9.3
2004-12-31	8
2005-03-31	7.8
2005-06-30	8.5
2005-09-30	7.4
2005-12-31	9.6
2006-03-31	11.2
2006-06-30	11.5
2006-09-30	14.6
2006-12-31	12.8
2007-03-31	12.3
2007-06-30	14
2007-09-30	10.3
2007-12-31	7.2
2008-03-31	2.2
2008-06-30	-4.3
2008-09-30	0.8
2008-12-31	-0.7
2009-03-31	-0.1
2009-06-30	4.2
2009-09-30	0.8
2009-12-31	5.9
2010-03-31	6.5
2010-06-30	3.9
2010-09-30	4.8
2010-12-31	3.3
2011-03-31	0.1
2011-06-30	3.4
2011-09-30	1.1
2011-12-31	-1.6
2012-03-31	1
2012-06-30	2.7
2012-09-30	2
2012-12-31	6.5
2013-03-31	6.9
2013-06-30	5.2
2013-09-30	5
2013-12-31	4.8
2014-03-31	7.1
2014-06-30	4.2
2014-09-30	6.1
2014-12-31	6
2015-03-31	5.8
2015-06-30	8
2015-09-30	8.8
2015-12-31	9.2
2016-03-31	6.3
2016-06-30	6.1
2016-09-30	4.9
2016-12-31	5.3
2017-03-31	5.7
2017-06-30	7.9
2017-09-30	8.8
2017-12-31	8.1
2018-03-31	6.2
2018-06-30	3.5
2018-09-30	3.9
2018-12-31	4.3
2019-03-31	4.2
2019-06-30	2.5
2019-09-30	2.3
2019-12-31	2
2020-03-31	7.8
2020-06-30	20.2
2020-09-30	23.2
2020-12-31	25.9
2021-03-31	22.4
2021-06-30	12.2
2021-09-30	8.5
2021-12-31	4.8
2022-03-31	5.2
2022-06-30	3
2022-09-30	3.5
2022-12-31	-0.8
2023-03-31	-4.5
2023-06-30	-5.4
2023-09-30	-6.7
2023-12-31	-4.1