Month	Percent
2010-06-30	4.1
2010-07-31	4.9
2010-08-31	6.1
2010-09-30	5.6
2010-10-31	3.7
2010-11-30	3.3
2010-12-31	2.8
2011-01-31	4.4
2011-02-28	3.2
2011-03-31	2.2
2011-04-30	2.7
2011-05-31	2.5
2011-06-30	3.2
2011-07-31	1.9
2011-08-31	0.5
2011-09-30	0.1
2011-10-31	2.2
2011-11-30	1.6
2011-12-31	0.4
2012-01-31	0.9
2012-02-29	2.7
2012-03-31	1.2
2012-04-30	2.7
2012-05-31	2.3
2012-06-30	0.7
2012-07-31	3
2012-08-31	3.5
2012-09-30	4
2012-10-31	5.2
2012-11-30	4.3
2012-12-31	4.8
2013-01-31	7.3
2013-02-28	8