Month	Percent
2009-07-31	1
2009-08-31	0
2009-09-30	2.5
2009-10-31	-3.9
2009-11-30	5.6
2009-12-31	-1.5
2010-01-31	1.6
2010-02-28	-1.2
2010-03-31	-2.9
2010-04-30	-4.8
2010-05-31	8.7
2010-06-30	-0.6
2010-07-31	0.6
2010-08-31	2.2
2010-09-30	0.5
2010-10-31	5.9
2010-11-30	-4.3
2010-12-31	0.7
2011-01-31	0.2
2011-02-28	0.2
2011-03-31	-7.4
2011-04-30	8.7
2011-05-31	2.2
2011-06-30	1.8
2011-07-31	6.5
2011-08-31	-3.6
2011-09-30	-0.5
2011-10-31	2.3
2011-11-30	-1.8
2011-12-31	-8.1
2012-01-31	6.6
2012-02-29	-3.7
2012-03-31	-6
2012-04-30	10.2
2012-05-31	12.4
2012-06-30	-5
2012-07-31	0.7
2012-08-31	-1.5
2012-09-30	-4.5
2012-10-31	-1.4
2012-11-30	4.4
2012-12-31	0.1
2013-01-31	3.2
2013-02-28	8.1