Month	Percent
2004-01-31	4.09
2004-02-29	4.18
2004-03-31	4.25
2004-04-30	4.08
2004-05-31	4.33
2004-06-30	4.52
2004-07-31	4.62
2004-08-31	4.71
2004-09-30	4.95
2004-10-31	4.97
2004-11-30	4.96
2004-12-31	4.96
2005-01-31	4.92
2005-02-28	4.9
2005-03-31	4.9
2005-04-30	4.92
2005-05-31	4.84
2005-06-30	4.91
2005-07-31	4.9
2005-08-31	4.72
2005-09-30	4.61
2005-10-31	4.62
2005-11-30	4.63
2005-12-31	4.64
2006-01-31	4.63
2006-02-28	4.65
2006-03-31	4.63
2006-04-30	4.6
2006-05-31	4.62
2006-06-30	4.59
2006-07-31	4.61
2006-08-31	4.8
2006-09-30	4.84
2006-10-31	4.82
2006-11-30	5
2006-12-31	5.08
2007-01-31	5.24
2007-02-28	5.3
2007-03-31	5.27
2007-04-30	5.3
2007-05-31	5.5
2007-06-30	5.55
2007-07-31	5.82
2007-08-31	5.85
2007-09-30	5.59
2007-10-31	5.7
2007-11-30	5.65
2007-12-31	5.45
2008-01-31	5.41
2008-02-29	5.25
2008-03-31	5.15
2008-04-30	5.05
2008-05-31	5.02
2008-06-30	5.02
2008-07-31	4.91
2008-08-31	5.03
2008-09-30	4.88
2008-10-31	4.72
2008-11-30	3.26
2008-12-31	2.32
2009-01-31	1.72
2009-02-28	1.28
2009-03-31	0.83
2009-04-30	0.97
2009-05-31	0.96
2009-06-30	0.91
2009-07-31	0.92
2009-08-31	0.93
2009-09-30	0.89
2009-10-31	0.9
2009-11-30	0.89
2009-12-31	0.84