Month	Percent
2004-01-31	5.72
2004-02-29	5.71
2004-03-31	5.73
2004-04-30	5.83
2004-05-31	5.85
2004-06-30	6.5
2004-07-31	6.38
2004-08-31	6.44
2004-09-30	6.5
2004-10-31	6.49
2004-11-30	6.48
2004-12-31	6.48
2005-01-31	6.51
2005-02-28	6.57
2005-03-31	6.54
2005-04-30	6.56
2005-05-31	6.55
2005-06-30	6.47
2005-07-31	6.45
2005-08-31	6.4
2005-09-30	6.41
2005-10-31	6.36
2005-11-30	6.32
2005-12-31	6.37
2006-01-31	6.33
2006-02-28	6.25
2006-03-31	6.2
2006-04-30	6.26
2006-05-31	6.19
2006-06-30	6.15
2006-07-31	6.1
2006-08-31	6.14
2006-09-30	6.1
2006-10-31	6.05
2006-11-30	6.11
2006-12-31	6.12
2007-01-31	6.13
2007-02-28	6.11
2007-03-31	6.1
2007-04-30	6.1
2007-05-31	6.14
2007-06-30	6.13
2007-07-31	6.17
2007-08-31	6.13
2007-09-30	6.2
2007-10-31	6.21
2007-11-30	6.23
2007-12-31	6.23
2008-01-31	6.37
2008-02-29	6.5
2008-03-31	6.26
2008-04-30	6.33
2008-05-31	6.24
2008-06-30	6.28
2008-07-31	6.25
2008-08-31	6.18
2008-09-30	6.26
2008-10-31	6.23
2008-11-30	6.13
2008-12-31	6.03
2009-01-31	5.96
2009-02-28	6.06
2009-03-31	5.85
2009-04-30	5.81
2009-05-31	5.7
2009-06-30	5.74
2009-07-31	5.7
2009-08-31	5.69
2009-09-30	5.72
2009-10-31	5.68
2009-11-30	5.72
2009-12-31	5.67
2010-01-31	5.65
2010-02-28	5.8
2010-03-31	5.63
2010-04-30	5.68
2010-05-31	5.63
2010-06-30	5.65
2010-07-31	5.62
2010-08-31	5.63
2010-09-30	5.67
2010-10-31	5.62
2010-11-30	5.66
2010-12-31	5.6
2011-01-31	5.63
2011-02-28	5.85
2011-03-31	5.61
2011-04-30	5.72
2011-05-31	5.64
2011-06-30	5.71
2011-07-31	5.64
2011-08-31	5.63
2011-09-30	5.7
2011-10-31	5.63
2011-11-30	5.7
2011-12-31	5.62
2012-01-31	5.68
2012-02-29	5.84
2012-03-31	5.36
2012-04-30	5.99
2012-05-31	5.66
2012-06-30	5.44
2012-07-31	5.89
2012-08-31	5.63
2012-09-30	5.41
2012-10-31	5.88
2012-11-30	5.68
2012-12-31	5.59
2013-01-31	5.66
2013-02-28	5.97
2013-03-31	5.56
2013-04-30	5.71
2013-05-31	5.62
2013-06-30	5.71
2013-07-31	5.63
2013-08-31	5.57
2013-09-30	5.68
2013-10-31	5.53
2013-11-30	5.64
2013-12-31	5.48
2014-01-31	5.54
2014-02-28	5.78
2014-03-31	5.43
2014-04-30	5.5
2014-05-31	5.38
2014-06-30	5.43
2014-07-31	5.32
2014-08-31	5.3
2014-09-30	5.36
2014-10-31	5.26
2014-11-30	5.3
2014-12-31	5.21
2015-01-31	5.27
2015-02-28	5.48
2015-03-31	5.24
2015-04-30	5.32
2015-05-31	5.21
2015-06-30	5.24
2015-07-31	5.19
2015-08-31	5.1
2015-09-30	5.17
2015-10-31	5.08
2015-11-30	5.15
2015-12-31	5.07