Month	Percent
2009-09-30	-31.6
2009-10-31	-3.1
2009-11-30	2.3
2009-12-31	-3
2010-01-31	-4.8
2010-02-28	-12.9
2010-03-31	-13
2010-04-30	-2.7
2010-05-31	6.6
2010-06-30	-2.4
2010-07-31	-0.2
2010-08-31	5.5
2010-09-30	6.4
2010-10-31	5.3
2010-11-30	-10.5
2010-12-31	-6.6
2011-01-31	-13.8
2011-02-28	0.1
2011-03-31	1.2
2011-04-30	-1.5
2011-05-31	-9.1
2011-06-30	-1.4
2011-07-31	6.6
2011-08-31	11
2011-09-30	5.3
2011-10-31	12.6
2011-11-30	4.6
2011-12-31	3.9
2012-01-31	-12.6
2012-02-29	-10.1
2012-03-31	-11.2
2012-04-30	8.9
2012-05-31	10.1
2012-06-30	4.3
2012-07-31	-5.2
2012-08-31	-5.7
2012-09-30	7.6
2012-10-31	12.6
2012-11-30	5.8
2012-12-31	0.9
2013-01-31	-7.7
2013-02-28	1.5