Month	Percent
2004-01-31	4.77
2004-02-29	5.3
2004-03-31	5.33
2004-04-30	5.42
2004-05-31	5.51
2004-06-30	5.92
2004-07-31	5.81
2004-08-31	5.92
2004-09-30	6.05
2004-10-31	6.05
2004-11-30	5.99
2004-12-31	6.15
2005-01-31	6.01
2005-02-28	5.96
2005-03-31	6.06
2005-04-30	6.05
2005-05-31	6.06
2005-06-30	6.07
2005-07-31	6.02
2005-08-31	6.35
2005-09-30	6.3
2005-10-31	6.1
2005-11-30	5.96
2005-12-31	6.05
2006-01-31	5.7
2006-02-28	5.92
2006-03-31	6.02
2006-04-30	6.02
2006-05-31	5.97
2006-06-30	6.03
2006-07-31	5.97
2006-08-31	6.32
2006-09-30	6.39
2006-10-31	6.4
2006-11-30	6.49
2006-12-31	6.61
2007-01-31	6.42
2007-02-28	6.31
2007-03-31	6.42
2007-04-30	6.63
2007-05-31	6.78
2007-06-30	6.75
2007-07-31	7.1
2007-08-31	7.33
2007-09-30	7.28
2007-10-31	6.96
2007-11-30	7.05
2007-12-31	6.97
2008-01-31	6.49
2008-02-29	6.5
2008-03-31	6.45
2008-04-30	6.47
2008-05-31	6.24
2008-06-30	6.36
2008-07-31	6.32
2008-08-31	6.31
2008-09-30	6.52
2008-10-31	6.84
2008-11-30	5.11
2008-12-31	3.92
2009-01-31	3.14
2009-02-28	2.86
2009-03-31	2.56
2009-04-30	2.41
2009-05-31	2.26
2009-06-30	2.25
2009-07-31	2.27
2009-08-31	2.21
2009-09-30	2.21
2009-10-31	2.3
2009-11-30	2.24
2009-12-31	2.25
2010-01-31	2.25
2010-02-28	2.18
2010-03-31	2.28
2010-04-30	2.3
2010-05-31	2.29
2010-06-30	2.38
2010-07-31	2.32
2010-08-31	2.29
2010-09-30	2.33
2010-10-31	2.31
2010-11-30	2.27
2010-12-31	2.48
2011-01-31	2.68
2011-02-28	2.77
2011-03-31	2.68
2011-04-30	2.72
2011-05-31	2.76
2011-06-30	2.82
2011-07-31	2.72
2011-08-31	2.67
2011-09-30	2.73
2011-10-31	2.79
2011-11-30	2.72
2011-12-31	2.98
2012-01-31	2.8
2012-02-29	2.8
2012-03-31	2.94
2012-04-30	2.9
2012-05-31	2.74
2012-06-30	2.85
2012-07-31	2.71
2012-08-31	2.66
2012-09-30	2.67
2012-10-31	2.82
2012-11-30	2.64
2012-12-31	2.69
2013-01-31	2.67
2013-02-28	2.56
2013-03-31	2.68
2013-04-30	2.81
2013-05-31	2.66
2013-06-30	2.63
2013-07-31	2.63
2013-08-31	2.71
2013-09-30	2.69
2013-10-31	2.75
2013-11-30	2.7
2013-12-31	2.81
2014-01-31	2.65
2014-02-28	2.64
2014-03-31	2.55
2014-04-30	2.67
2014-05-31	2.52
2014-06-30	2.55
2014-07-31	2.66
2014-08-31	2.74
2014-09-30	2.54
2014-10-31	2.45
2014-11-30	2.53
2014-12-31	2.8
2015-01-31	2.66
2015-02-28	2.65
2015-03-31	2.57
2015-04-30	2.75
2015-05-31	2.7
2015-06-30	2.76
2015-07-31	2.58
2015-08-31	2.89
2015-09-30	2.73
2015-10-31	2.7
2015-11-30	2.77
2015-12-31	2.81