Month	Percent
1996-01-31	6.035
1996-02-29	5.97
1996-03-31	5.94
1996-04-30	5.92
1996-05-31	5.93
1996-06-30	5.66
1996-07-31	5.65
1996-08-31	5.68
1996-09-30	5.8
1996-10-31	6.15
1996-11-30	6.34
1996-12-31	6.4
1997-01-31	6.2
1997-02-28	6.07
1997-03-31	6.34
1997-04-30	6.45
1997-05-31	6.455
1997-06-30	6.705
1997-07-31	6.95
1997-08-31	7.145
1997-09-30	7.1
1997-10-31	7.08
1997-11-30	7.46
1997-12-31	7.335
1998-01-31	7.25
1998-02-28	7.245
1998-03-31	7.245
1998-04-30	7.06
1998-05-31	7.145
1998-06-30	7.575
1998-07-31	7.425
1998-08-31	7.195
1998-09-30	6.765
1998-10-31	6.465
1998-11-30	6.105
1998-12-31	5.485
1999-01-31	5.265
1999-02-28	4.955
1999-03-31	4.825
1999-04-30	4.98
1999-05-31	4.995
1999-06-30	4.815
1999-07-31	4.945
1999-08-31	5.005
1999-09-30	5.445
1999-10-31	5.595
1999-11-30	5.745
1999-12-31	5.875
2000-01-31	6.15
2000-02-29	6.195
2000-03-31	6.145
2000-04-30	6.165
2000-05-31	6.075
2000-06-30	5.975
2000-07-31	6
2000-08-31	6.005
2000-09-30	5.915
2000-10-31	5.875
2000-11-30	5.715
2000-12-31	5.61
2001-01-31	5.425
2001-02-28	5.3
2001-03-31	5.125
2001-04-30	5.005
2001-05-31	5.005
2001-06-30	5.15
2001-07-31	5.075
2001-08-31	4.745
2001-09-30	4.225
2001-10-31	3.925
2001-11-30	3.815
2001-12-31	3.92
2002-01-31	3.945
2002-02-28	3.905
2002-03-31	4.175
2002-04-30	4.125
2002-05-31	4.225
2002-06-30	4.155
2002-07-31	3.895
2002-08-31	3.845
2002-09-30	3.745
2002-10-31	3.705
2002-11-30	3.905
2002-12-31	3.795
2003-01-31	3.695
2003-02-28	3.405
2003-03-31	3.405
2003-04-30	3.375
2003-05-31	3.365
2003-06-30	3.385
2003-07-31	3.285
2003-08-31	3.545
2003-09-30	3.615
2003-10-31	3.945
2003-11-30	4.025
2003-12-31	3.995
2004-01-31	4.105
2004-02-29	4.145
2004-03-31	4.345
2004-04-30	4.405
2004-05-31	4.645
2004-06-30	4.805
2004-07-31	4.955
2004-08-31	4.875
2004-09-30	4.795
2004-10-31	4.755
2004-11-30	4.695
2004-12-31	4.745
2005-01-31	4.725
2005-02-28	4.875
2005-03-31	4.845
2005-04-30	4.765
2005-05-31	4.675
2005-06-30	4.545
2005-07-31	4.385
2005-08-31	4.39
2005-09-30	4.395
2005-10-31	4.45
2005-11-30	4.445
2005-12-31	4.405
2006-01-31	4.445
2006-02-28	4.465
2006-03-31	4.5
2006-04-30	4.55
2006-05-31	4.595
2006-06-30	4.545
2006-07-31	4.695
2006-08-31	4.935
2006-09-30	5.145
2006-10-31	5.22
2006-11-30	5.155
2006-12-31	5.26
2007-01-31	5.55
2007-02-28	5.47
2007-03-31	5.555
2007-04-30	5.655
2007-05-31	5.79
2007-06-30	5.94
2007-07-31	5.975
2007-08-31	5.905
2007-09-30	5.675
2007-10-31	5.645
2007-11-30	5.515
2007-12-31	5.285
2008-01-31	5.015
2008-02-29	5.01
2008-03-31	4.9
2008-04-30	4.855
2008-05-31	5.175
2008-06-30	5.31
2008-07-31	5.245
2008-08-31	5.135
2008-09-30	4.775
2008-10-31	3.3
2008-11-30	1.725
2008-12-31	1.205
2009-01-31	0.975
2009-02-28	0.695
2009-03-31	0.715
2009-04-30	0.675
2009-05-31	0.61
2009-06-30	0.615
2009-07-31	0.445
2009-08-31	0.425
2009-09-30	0.425
2009-10-31	0.475
2009-11-30	0.455
2009-12-31	0.535
2010-01-31	0.52
2010-02-28	0.515
2010-03-31	0.535
2010-04-30	0.545
2010-05-31	0.565
2010-06-30	0.545
2010-07-31	0.545
2010-08-31	0.545
2010-09-30	0.565
2010-10-31	0.565
2010-11-30	0.575
2010-12-31	0.605
2011-01-31	0.645
2011-02-28	0.715
2011-03-31	0.745
2011-04-30	0.64
2011-05-31	0.605
2011-06-30	0.585
2011-07-31	0.565
2011-08-31	0.545
2011-09-30	0.53
2011-10-31	0.535
2011-11-30	0.505
2011-12-31	0.475
2012-01-31	0.485
2012-02-29	0.455
2012-03-31	0.475
2012-04-30	0.475
2012-05-31	0.435
2012-06-30	0.445
2012-07-31	0.365
2012-08-31	0.4
2012-09-30	0.435
2012-10-31	0.405
2012-11-30	0.425
2012-12-31	0.445
2013-01-31	0.435
2013-02-28	0.415
2013-03-31	0.445