Month	Percent
1996-01-31	6.215
1996-02-29	6.17
1996-03-31	5.92
1996-04-30	5.93
1996-05-31	5.93
1996-06-30	5.7
1996-07-31	5.68
1996-08-31	5.68
1996-09-30	5.73
1996-10-31	6.01
1996-11-30	5.98
1996-12-31	6.02
1997-01-31	5.97
1997-02-28	5.9
1997-03-31	5.95
1997-04-30	6.025
1997-05-31	6.245
1997-06-30	6.445
1997-07-31	6.725
1997-08-31	6.975
1997-09-30	6.975
1997-10-31	6.985
1997-11-30	7.22
1997-12-31	7.225
1998-01-31	7.235
1998-02-28	7.215
1998-03-31	7.235
1998-04-30	7.145
1998-05-31	7.16
1998-06-30	7.375
1998-07-31	7.395
1998-08-31	7.345
1998-09-30	7.245
1998-10-31	6.955
1998-11-30	6.475
1998-12-31	5.78
1999-01-31	5.705
1999-02-28	5.295
1999-03-31	5.025
1999-04-30	5.065
1999-05-31	5.035
1999-06-30	4.75
1999-07-31	4.875
1999-08-31	4.775
1999-09-30	5.205
1999-10-31	5.275
1999-11-30	5.275
1999-12-31	5.2
2000-01-31	5.79
2000-02-29	5.915
2000-03-31	5.805
2000-04-30	5.925
2000-05-31	5.845
2000-06-30	5.755
2000-07-31	5.825
2000-08-31	5.805
2000-09-30	5.825
2000-10-31	5.815
2000-11-30	5.715
2000-12-31	5.695
2001-01-31	5.675
2001-02-28	5.52
2001-03-31	5.475
2001-04-30	5.245
2001-05-31	5.095
2001-06-30	5.025
2001-07-31	5.075
2001-08-31	4.655
2001-09-30	4.505
2001-10-31	4.115
2001-11-30	3.875
2001-12-31	3.88
2002-01-31	3.875
2002-02-28	3.855
2002-03-31	3.825
2002-04-30	3.875
2002-05-31	3.9
2002-06-30	3.85
2002-07-31	3.805
2002-08-31	3.855
2002-09-30	3.795
2002-10-31	3.775
2002-11-30	3.825
2002-12-31	3.905
2003-01-31	3.825
2003-02-28	3.585
2003-03-31	3.575
2003-04-30	3.475
2003-05-31	3.555
2003-06-30	3.505
2003-07-31	3.285
2003-08-31	3.465
2003-09-30	3.515
2003-10-31	3.615
2003-11-30	3.675
2003-12-31	3.775
2004-01-31	3.825
2004-02-29	3.945
2004-03-31	4.025
2004-04-30	4.105
2004-05-31	4.275
2004-06-30	4.455
2004-07-31	4.675
2004-08-31	4.705
2004-09-30	4.695
2004-10-31	4.705
2004-11-30	4.695
2004-12-31	4.725
2005-01-31	4.705
2005-02-28	4.735
2005-03-31	4.715
2005-04-30	4.725
2005-05-31	4.735
2005-06-30	4.705
2005-07-31	4.53
2005-08-31	4.475
2005-09-30	4.465
2005-10-31	4.455
2005-11-30	4.445
2005-12-31	4.495
2006-01-31	4.435
2006-02-28	4.425
2006-03-31	4.42
2006-04-30	4.475
2006-05-31	4.535
2006-06-30	4.515
2006-07-31	4.545
2006-08-31	4.775
2006-09-30	4.805
2006-10-31	4.955
2006-11-30	5.055
2006-12-31	5.09
2007-01-31	5.285
2007-02-28	5.275
2007-03-31	5.335
2007-04-30	5.425
2007-05-31	5.53
2007-06-30	5.725
2007-07-31	5.775
2007-08-31	5.855
2007-09-30	5.76
2007-10-31	5.725
2007-11-30	5.685
2007-12-31	5.485
2008-01-31	5.305
2008-02-29	5.24
2008-03-31	5.16
2008-04-30	5.015
2008-05-31	5.06
2008-06-30	5.145
2008-07-31	5.16
2008-08-31	5.11
2008-09-30	4.905
2008-10-31	3.95
2008-11-30	2.125
2008-12-31	1.575
2009-01-31	1.125
2009-02-28	0.675
2009-03-31	0.655
2009-04-30	0.505
2009-05-31	0.53
2009-06-30	0.505
2009-07-31	0.42
2009-08-31	0.425
2009-09-30	0.455
2009-10-31	0.445
2009-11-30	0.46
2009-12-31	0.485
2010-01-31	0.49
2010-02-28	0.505
2010-03-31	0.515
2010-04-30	0.505
2010-05-31	0.505
2010-06-30	0.525
2010-07-31	0.54
2010-08-31	0.52
2010-09-30	0.535
2010-10-31	0.55
2010-11-30	0.545
2010-12-31	0.575
2011-01-31	0.545
2011-02-28	0.53
2011-03-31	0.555
2011-04-30	0.55
2011-05-31	0.54
2011-06-30	0.535
2011-07-31	0.53
2011-08-31	0.525
2011-09-30	0.515
2011-10-31	0.515
2011-11-30	0.465
2011-12-31	0.375
2012-01-31	0.465
2012-02-29	0.455
2012-03-31	0.465
2012-04-30	0.455
2012-05-31	0.465
2012-06-30	0.465
2012-07-31	0.445
2012-08-31	0.45
2012-09-30	0.455
2012-10-31	0.405
2012-11-30	0.445
2012-12-31	0.425
2013-01-31	0.435
2013-02-28	0.415
2013-03-31	0.455
2013-04-30	0.445
2013-05-31	0.445
2013-06-30	0.445
2013-07-31	0.445
2013-08-31	0.425
2013-09-30	0.435
2013-10-31	0.44
2013-11-30	0.425
2013-12-31	0.41
2014-01-31	0.425
2014-02-28	0.425
2014-03-31	0.435
2014-04-30	0.41
2014-05-31	0.435
2014-06-30	0.425
2014-07-31	0.45
2014-08-31	0.455
2014-09-30	0.48
2014-10-31	0.48
2014-11-30	0.49
2014-12-31	0.425
2015-01-31	0.49
2015-02-28	0.48
2015-03-31	0.5
2015-04-30	0.51
2015-05-31	0.51
2015-06-30	0.545
2015-07-31	0.53
2015-08-31	0.525
2015-09-30	0.525
2015-10-31	0.53
2015-11-30	0.54
2015-12-31	0.535
2016-01-31	0.56
2016-02-29	0.535
2016-03-31	0.555
2016-04-30	0.535
2016-05-31	0.535
2016-06-30	0.52
2016-07-31	0.395
2016-08-31	0.29
2016-09-30	0.28
2016-10-31	0.28
2016-11-30	0.28
2016-12-31	0.28
2017-01-31	0.28
2017-02-28	0.275
2017-03-31	0.245
2017-04-30	0.26
2017-05-31	0.26
2017-06-30	0.265
2017-07-31	0.27
2017-08-31	0.23
2017-09-30	0.225
2017-10-31	0.435
2017-11-30	0.49
2017-12-31	0.455
2018-01-31	0.48
2018-02-28	0.475
2018-03-31	0.48
2018-04-30	0.52
2018-05-31	0.495
2018-06-30	0.5