Month	Percent
2004-01-31	5.57
2004-02-29	5.61
2004-03-31	6.54
2004-04-30	5.63
2004-05-31	5.44
2004-06-30	5.62
2004-07-31	6.76
2004-08-31	6.96
2004-09-30	6.94
2004-10-31	6.97
2004-11-30	7.27
2004-12-31	6.86
2005-01-31	6.73
2005-02-28	6.75
2005-03-31	6.78
2005-04-30	6.86
2005-05-31	6.85
2005-06-30	6.86
2005-07-31	6.89
2005-08-31	6.94
2005-09-30	6.98
2005-10-31	6.99
2005-11-30	6.94
2005-12-31	6.9
2006-01-31	5.89
2006-02-28	5.91
2006-03-31	6.03
2006-04-30	5.32
2006-05-31	5.32
2006-06-30	5.31
2006-07-31	5.32
2006-08-31	4.81
2006-09-30	5.38
2006-10-31	5.07
2006-11-30	4.43
2006-12-31	4.51
2007-01-31	4.43
2007-02-28	4.14
2007-03-31	4.11
2007-04-30	5.91
2007-05-31	4.35
2007-06-30	4.5
2007-07-31	4.58
2007-08-31	4.62
2007-09-30	4.63
2007-10-31	5.18
2007-11-30	5.31
2007-12-31	5.23
2008-01-31	5.42
2008-02-29	5.39
2008-03-31	5.42
2008-04-30	5.56
2008-05-31	5.59
2008-06-30	5.59
2008-07-31	5.66
2008-08-31	5.69
2008-09-30	5.69
2008-10-31	5.77
2008-11-30	5.82
2008-12-31	5.71
2009-01-31	4.89
2009-02-28	4.26
2009-03-31	4.16
2009-04-30	3.81
2009-05-31	3.47
2009-06-30	3.3
2009-07-31	3.09
2009-08-31	3.01
2009-09-30	3.04
2009-10-31	2.96
2009-11-30	2.94
2009-12-31	3.06
2010-01-31	3.1
2010-02-28	3.03
2010-03-31	3.14
2010-04-30	3.2
2010-05-31	3.23
2010-06-30	3.09
2010-07-31	3.19
2010-08-31	3.1
2010-09-30	3.12
2010-10-31	3.82
2010-11-30	3.74
2010-12-31	3.78