Month	Percent
1996-01-31	6.22
1996-02-29	6.125
1996-03-31	6.03
1996-04-30	6
1996-05-31	6.03
1996-06-30	5.78
1996-07-31	5.75
1996-08-31	5.72
1996-09-30	5.875
1996-10-31	6.235
1996-11-30	6.345
1996-12-31	6.5
1997-01-31	6.28
1997-02-28	6.235
1997-03-31	6.375
1997-04-30	6.5
1997-05-31	6.655
1997-06-30	6.91
1997-07-31	7.16
1997-08-31	7.25
1997-09-30	7.28
1997-10-31	7.345
1997-11-30	7.66
1997-12-31	7.595
1998-01-31	7.5
1998-02-28	7.53
1998-03-31	7.545
1998-04-30	7.44
1998-05-31	7.48
1998-06-30	7.81
1998-07-31	7.75
1998-08-31	7.66
1998-09-30	7.31
1998-10-31	7.125
1998-11-30	6.81
1998-12-31	6.16
1999-01-31	5.72
1999-02-28	5.405
1999-03-31	5.235
1999-04-30	5.25
1999-05-31	5.28
1999-06-30	5.07
1999-07-31	5.25
1999-08-31	5.16
1999-09-30	5.53
1999-10-31	5.97
1999-11-30	5.94
1999-12-31	6.0625
2000-01-31	6.25
2000-02-29	6.2188
2000-03-31	6.2188
2000-04-30	6.2813
2000-05-31	6.2188
2000-06-30	6.1563
2000-07-31	6.1876
2000-08-31	6.1876
2000-09-30	6.1251
2000-10-31	6.0938
2000-11-30	6.0313
2000-12-31	5.845
2001-01-31	5.675
2001-02-28	5.87
2001-03-31	5.4688
2001-04-30	5.2813
2001-05-31	5.195
2001-06-30	5.25
2001-07-31	5.2188
2001-08-31	4.865
2001-09-30	4.44
2001-10-31	4.125
2001-11-30	3.9688
2001-12-31	4.0313
2002-01-31	4.01
2002-02-28	4
2002-03-31	4.185
2002-04-30	4.0625
2002-05-31	4.125
2002-06-30	4.125
2002-07-31	3.925
2002-08-31	3.945
2002-09-30	3.87
2002-10-31	3.885
2002-11-30	4.015
2002-12-31	3.965
2003-01-31	3.91
2003-02-28	3.615
2003-03-31	3.605
2003-04-30	3.545
2003-05-31	3.565
2003-06-30	3.585
2003-07-31	3.405
2003-08-31	3.4375
2003-09-30	3.665
2003-10-31	3.895
2003-11-30	3.935
2003-12-31	3.945
2004-01-31	4.085
2004-02-29	4.17
2004-03-31	4.315
2004-04-30	4.39
2004-05-31	4.59
2004-06-30	4.775
2004-07-31	4.9
2004-08-31	4.89
2004-09-30	4.85
2004-10-31	4.83
2004-11-30	4.795
2004-12-31	4.82
2005-01-31	4.82
2005-02-28	4.895
2005-03-31	4.92
2005-04-30	4.87
2005-05-31	4.81
2005-06-30	4.64
2005-07-31	4.55
2005-08-31	4.525
2005-09-30	4.535
2005-10-31	4.56
2005-11-30	4.57
2005-12-31	4.585
2006-01-31	4.54
2006-02-28	4.525
2006-03-31	4.57
2006-04-30	4.625
2006-05-31	4.67
2006-06-30	4.72
2006-07-31	4.75
2006-08-31	4.95
2006-09-30	5.025
2006-10-31	5.16
2006-11-30	5.2
2006-12-31	5.28
2007-01-31	5.545
2007-02-28	5.49
2007-03-31	5.57
2007-04-30	5.675
2007-05-31	5.77
2007-06-30	5.97
2007-07-31	6.01
2007-08-31	6.725
2007-09-30	6.25
2007-10-31	6.195
2007-11-30	6.6
2007-12-31	6
2008-01-31	5.525
2008-02-29	5.725
2008-03-31	5.975
2008-04-30	5.775
2008-05-31	5.825
2008-06-30	5.905
2008-07-31	5.75
2008-08-31	5.71
2008-09-30	6.225
2008-10-31	5.8
2008-11-30	3.95
2008-12-31	2.875
2009-01-31	2.075
2009-02-28	2.025
2009-03-31	1.5
2009-04-30	1.415
2009-05-31	1.225
2009-06-30	1.175
2009-07-31	0.905
2009-08-31	0.655
2009-09-30	0.5
2009-10-31	0.6
2009-11-30	0.635
2009-12-31	0.62
2010-01-31	0.62
2010-02-28	0.615
2010-03-31	0.615
2010-04-30	0.635
2010-05-31	0.695
2010-06-30	0.775
2010-07-31	0.775
2010-08-31	0.75
2010-09-30	0.74
2010-10-31	0.725
2010-11-30	0.725
2010-12-31	0.725
2011-01-31	0.75
2011-02-28	0.8
2011-03-31	0.84
2011-04-30	0.835
2011-05-31	0.82
2011-06-30	0.825
2011-07-31	0.855
2011-08-31	0.985
2011-09-30	0.975
2011-10-31	0.995
2011-11-30	1.055
2011-12-31	1.105
2012-01-31	1.105
2012-02-29	1.08
2012-03-31	1.055
2012-04-30	1.03
2012-05-31	1.025
2012-06-30	0.905
2012-07-31	1.02
2012-08-31	0.94
2012-09-30	0.905
2012-10-31	0.87
2012-11-30	0.865
2012-12-31	0.865
2013-01-31	0.8613
2013-02-28	0.86