Month	Percent
1995-01-31	5.32
1995-02-28	5.5
1995-03-31	5.51
1995-04-30	5.52
1995-05-31	5.5
1995-06-30	5.5
1995-07-31	5.49
1995-08-31	5.45
1995-09-30	5.32
1995-10-31	4.93
1995-11-30	4.93
1995-12-31	4.89
1996-01-31	4.62
1996-02-29	4.5
1996-03-31	4.41
1996-04-30	4.27
1996-05-31	4.21
1996-06-30	4.2
1996-07-31	4.16
1996-08-31	4.04
1996-09-30	4.04
1996-10-31	4.02
1996-11-30	4.02
1996-12-31	4.09
1997-01-31	4.25
1997-02-28	4.26
1997-03-31	4.29
1997-04-30	4.5
1997-05-31	4.58
1997-06-30	4.83
1997-07-31	5.22
1997-08-31	5.44
1997-09-30	5.74
1997-10-31	5.67
1997-11-30	5.68
1997-12-31	5.75
1998-01-31	5.87
1998-02-28	5.9
1998-03-31	5.89
1998-04-30	5.86
1998-05-31	5.97
1998-06-30	5.99
1998-07-31	6.14
1998-08-31	6.17
1998-09-30	6.18
1998-10-31	6.14
1998-11-30	5.81
1998-12-31	5.09
1999-01-31	4.67
1999-02-28	4.39
1999-03-31	4
1999-04-30	3.96
1999-05-31	3.9
1999-06-30	3.89
1999-07-31	3.83
1999-08-31	3.88
1999-09-30	3.88
1999-10-31	3.94
1999-11-30	3.97
1999-12-31	4.2
2000-01-31	4.2
2000-02-29	4.32
2000-03-31	4.51
2000-04-30	4.51
2000-05-31	4.51
2000-06-30	4.5
2000-07-31	4.5
2000-08-31	4.49
2000-09-30	4.46
2000-10-31	4.46
2000-11-30	4.44
2000-12-31	4.4
2001-01-31	4.39
2001-02-28	4.37
2001-03-31	4.17
2001-04-30	4.16
2001-05-31	3.9
2001-06-30	3.74
2001-07-31	3.74
2001-08-31	3.62
2001-09-30	3.47
2001-10-31	3.25
2001-11-30	2.98
2001-12-31	2.55
2002-01-31	2.51
2002-02-28	2.52
2002-03-31	2.47
2002-04-30	2.47
2002-05-31	2.47
2002-06-30	2.47
2002-07-31	2.47
2002-08-31	2.47
2002-09-30	2.46
2002-10-31	2.45
2002-11-30	2.45
2002-12-31	2.45
2003-01-31	2.45
2003-02-28	2.42
2003-03-31	2.21
2003-04-30	2.2
2003-05-31	2.2
2003-06-30	2.16
2003-07-31	2.13
2003-08-31	1.93
2003-09-30	1.92
2003-10-31	1.92
2003-11-30	1.94
2003-12-31	2.14
2004-01-31	2.12
2004-02-29	2.13
2004-03-31	2.31
2004-04-30	2.33
2004-05-31	2.33
2004-06-30	2.55
2004-07-31	2.82
2004-08-31	2.82
2004-09-30	3.02
2004-10-31	3.02
2004-11-30	3.05
2004-12-31	3.05
2005-01-31	3.15
2005-02-28	3.12
2005-03-31	3.09
2005-04-30	3.06
2005-05-31	3.08
2005-06-30	3.1
2005-07-31	3.1
2005-08-31	3.09
2005-09-30	2.74
2005-10-31	2.74
2005-11-30	2.73
2005-12-31	2.74
2006-01-31	2.92
2006-02-28	2.91
2006-03-31	2.89
2006-04-30	2.91
2006-05-31	2.9
2006-06-30	2.88
2006-07-31	2.89
2006-08-31	2.89
2006-09-30	3.1
2006-10-31	3.13
2006-11-30	3.08
2006-12-31	3.38
2007-01-31	3.38
2007-02-28	3.59
2007-03-31	3.61
2007-04-30	3.61
2007-05-31	3.61
2007-06-30	3.84
2007-07-31	3.85
2007-08-31	4.06
2007-09-30	4.07
2007-10-31	4.08
2007-11-30	4.06
2007-12-31	3.98
2008-01-31	3.7
2008-02-29	3.69
2008-03-31	3.42
2008-04-30	3.3
2008-05-31	3
2008-06-30	3.08
2008-07-31	3.14
2008-08-31	3.17
2008-09-30	3.22
2008-10-31	3.02
2008-11-30	2.31
2008-12-31	0.89
2009-01-31	0.43
2009-02-28	0.17
2009-03-31	0.18
2009-04-30	0.21
2009-05-31	0.22
2009-06-30	0.22
2009-07-31	0.23
2009-08-31	0.77
2009-09-30	0.63
2009-10-31	0.65
2009-11-30	0.56
2009-12-31	0.51
2010-01-31	0.69
2010-02-28	0.73
2010-03-31	0.8
2010-04-30	0.85
2010-05-31	0.97
2010-06-30	0.94
2010-07-31	1.05
2010-08-31	1.09
2010-09-30	1.12
2010-10-31	1.38
2010-11-30	1.44
2010-12-31	1.2
2011-01-31	1.12
2011-02-28	0.95
2011-03-31	1.11
2011-04-30	1.08
2011-05-31	1.25
2011-06-30	1.07
2011-07-31	0.9
2011-08-31	0.83
2011-09-30	1.19
2011-10-31	1.2
2011-11-30	1.72
2011-12-31	1.6
2012-01-31	1.27
2012-02-29	1.3
2012-03-31	1.34
2012-04-30	1.38
2012-05-31	1.1
2012-06-30	1.05
2012-07-31	1.31
2012-08-31	1.51
2012-09-30	1.77
2012-12-31	1.69