Quarter	Percent
2008-03-31	0.9
2008-06-30	0.1
2008-09-30	-0.3
2008-12-31	-1.4
2009-03-31	-1.5
2009-06-30	-2.1
2009-09-30	-1.1
2009-12-31	1.5
2010-03-31	-1.1
2010-06-30	-1.6
2010-09-30	-1.2
2010-12-31	-0.6
2011-03-31	-0.2
2011-06-30	-0.9
2011-09-30	-0.3
2011-12-31	-1.6
2012-03-31	-0.9
2012-06-30	-1.5
2012-09-30	-0.5
2012-12-31	-0.5
2013-03-31	1.4
2013-06-30	1.1
2013-09-30	2
2013-12-31	0.1
2014-03-31	2.8
2014-06-30	2.2
2014-09-30	2.8
2014-12-31	1
2015-03-31	3.6