Month	Percent
2004-01-31	4.88
2004-02-29	5.15
2004-03-31	5.18
2004-04-30	4.02
2004-05-31	4.59
2004-06-30	4.42
2004-07-31	5.2
2004-08-31	4.96
2004-09-30	5.17
2004-10-31	5.68
2004-11-30	6.58
2004-12-31	6.09
2005-01-31	6.33
2005-02-28	7.21
2005-03-31	6.06
2005-04-30	5.83
2005-05-31	5.58
2005-06-30	5.49
2005-07-31	5.36
2005-08-31	5.16
2005-09-30	5.25
2005-10-31	5.43
2005-11-30	5.55
2005-12-31	5.28
2006-01-31	5.52
2006-02-28	4.9
2006-03-31	5.61
2006-04-30	5.4
2006-05-31	5.07
2006-06-30	5.77
2006-07-31	5.64
2006-08-31	5.46
2006-09-30	5.53
2006-10-31	5.03
2006-11-30	5.93
2006-12-31	5.56
2007-01-31	5.17
2007-02-28	5.78
2007-03-31	5.2
2007-04-30	5.5
2007-05-31	5.41
2007-06-30	6.23
2007-07-31	6.27
2007-08-31	5.43
2007-09-30	6.83
2007-10-31	6.98
2007-11-30	6.16
2007-12-31	6.05
2008-01-31	5.69
2008-02-29	5.79
2008-03-31	5.91
2008-04-30	6.33
2008-05-31	6.25
2008-06-30	6.85
2008-07-31	6.7
2008-08-31	6.54
2008-09-30	6.72
2008-10-31	6.86
2008-11-30	5.22
2008-12-31	4.16
2009-01-31	4.24
2009-02-28	4.18
2009-03-31	3.37
2009-04-30	3.18
2009-05-31	3.08
2009-06-30	2.93
2009-07-31	2.98
2009-08-31	3.6
2009-09-30	3.62
2009-10-31	3.56
2009-11-30	4.19
2009-12-31	3.69
2010-01-31	3.93
2010-02-28	2.06
2010-03-31	3.53
2010-04-30	3.92
2010-05-31	3.56
2010-06-30	3.61
2010-07-31	3.62
2010-08-31	3.81
2010-09-30	3.67
2010-10-31	3.27
2010-11-30	3.96
2010-12-31	3.68
2011-01-31	3.85
2011-02-28	3.38
2011-03-31	4
2011-04-30	4.18
2011-05-31	4.42
2011-06-30	4.34
2011-07-31	4.12
2011-08-31	4.23
2011-09-30	3.68
2011-10-31	3.62
2011-11-30	3.61
2011-12-31	3.48
2012-01-31	3.1
2012-02-29	3.43
2012-03-31	3.31
2012-04-30	3.53
2012-05-31	3.68
2012-06-30	3.63
2012-07-31	3.55
2012-08-31	3.95
2012-09-30	4.29
2012-10-31	2.91
2012-11-30	4.42
2012-12-31	4.09
2013-01-31	3.86
2013-02-28	4.11
2013-03-31	4.36
2013-04-30	4.19
2013-05-31	4.67
2013-06-30	4.48
2013-07-31	4.46
2013-08-31	3.93
2013-09-30	4.31
2013-10-31	4.24
2013-11-30	4.15
2013-12-31	4.28
2014-01-31	4.14
2014-02-28	4.31
2014-03-31	4.17
2014-04-30	4.3
2014-05-31	4.13
2014-06-30	4.28
2014-07-31	4.27
2014-08-31	3.89
2014-09-30	3.9
2014-10-31	3.77
2014-11-30	3.62
2014-12-31	3.65
2015-01-31	3.67
2015-02-28	3.59
2015-03-31	3.4
2015-04-30	3.28
2015-05-31	3.28
2015-06-30	3.37
2015-07-31	3.23
2015-08-31	3.28
2015-09-30	3.24
2015-10-31	3.14
2015-11-30	3.24
2015-12-31	3.19