Month	Percent
2010-06-30	-9
2010-07-31	-8.6
2010-08-31	-9.3
2010-09-30	-8.3
2010-10-31	-8.6
2010-11-30	-9.2
2010-12-31	-8.2
2011-01-31	-6.3
2011-02-28	-7.3
2011-03-31	-6.3
2011-04-30	-6.4
2011-05-31	-7.5
2011-06-30	-8
2011-07-31	-6.6
2011-08-31	-5.9
2011-09-30	-4.8
2011-10-31	-3.6
2011-11-30	-2.9
2011-12-31	-3.6
2012-01-31	-4.3
2012-02-29	-5.1
2012-03-31	-4.5
2012-04-30	-5.9
2012-05-31	-5.2
2012-06-30	-4.3
2012-07-31	-4.5
2012-08-31	-5
2012-09-30	-4.9
2012-10-31	-5.5
2012-11-30	-6.6
2012-12-31	-7.3
2013-01-31	-6.6
2013-02-28	-6.2