Month	Percent
2009-09-30	-2.5
2009-10-31	-4.3
2009-11-30	9.8
2009-12-31	9.9
2010-01-31	1.8
2010-02-28	-7.4
2010-03-31	5.3
2010-04-30	9.6
2010-05-31	16.4
2010-06-30	3.9
2010-07-31	13.4
2010-08-31	7.2
2010-09-30	3.4
2010-10-31	-8.5
2010-11-30	-1.6
2010-12-31	-1.3
2011-01-31	4.6
2011-02-28	-7.8
2011-03-31	2.9
2011-04-30	2.4
2011-05-31	13.6
2011-06-30	8.2
2011-07-31	9.8
2011-08-31	-1.1
2011-09-30	-8.7
2011-10-31	-7.4
2011-11-30	3
2011-12-31	0
2012-01-31	-0.5
2012-02-29	-3.7
2012-03-31	6.2
2012-04-30	9.8
2012-05-31	11.8
2012-06-30	6
2012-07-31	11.3
2012-08-31	3.6
2012-09-30	3.8
2012-10-31	0.6
2012-11-30	6
2012-12-31	3
2013-01-31	7.9
2013-02-28	10.9