Quarter	Percent
2008-03-31	4.3
2008-06-30	0.5
2008-09-30	0.9
2008-12-31	5.2
2009-03-31	-1
2009-06-30	0.6
2009-09-30	-1.6
2009-12-31	-3.7
2010-03-31	-0.8
2010-06-30	1.3
2010-09-30	-1.2
2010-12-31	2.3
2011-03-31	-3
2011-06-30	2.1
2011-09-30	-3.5
2011-12-31	-0.2
2012-03-31	-2.6
2012-06-30	1
2012-09-30	0.8
2012-12-31	1.9
2013-03-31	-3
2013-06-30	-5.7
2013-09-30	5.8
2013-12-31	-1.4
2014-03-31	-4.4
2014-06-30	-2.1
2014-09-30	0.8
2014-12-31	-1
2015-03-31	-4.5
2015-06-30	-3.1
2015-09-30	1.1
2015-12-31	-2.2
2016-03-31	-0.5
2016-06-30	-4
2016-09-30	-1.4
2016-12-31	2
2017-03-31	-1.1
2017-06-30	-0.1
2017-09-30	3
2017-12-31	4.3
2018-03-31	-5.7
2018-06-30	0
2018-09-30	1.8
2018-12-31	4
2019-03-31	-5.1
2019-06-30	-1
2019-09-30	2.7
2019-12-31	2.3
2020-03-31	-9.5
2020-06-30	-15.3
2020-09-30	-3.8
2020-12-31	-3
2021-03-31	5.3
2021-06-30	-2.7
2021-09-30	2.1
2021-12-31	4.7
2022-03-31	3.5
2022-06-30	-1.9
2022-09-30	-3
2022-12-31	0.5
2023-03-31	0.4
2023-06-30	-6.3
2023-09-30	-3.3
2023-12-31	3.8