Month	Percent
1975-01-31	11.7898
1975-02-28	11.5
1975-03-31	10.8934
1975-04-30	10.15
1975-05-31	9.5
1975-06-30	9.5
1975-07-31	9.5
1975-08-31	9.9313
1975-09-30	10
1975-10-31	10.8478
1975-11-30	11
1975-12-31	11
1976-01-31	10.625
1976-02-29	9.6188
1976-03-31	9.5
1976-04-30	9.5
1976-05-31	9.7563
1976-06-30	10.5511
1976-07-31	10.5
1976-08-31	10.5
1976-09-30	11.3864
1976-10-31	13.2738
1976-11-30	14
1976-12-31	14
1977-01-31	13.7625
1977-02-28	12.225
1977-03-31	10.8261
1977-04-30	9.3947
1977-05-31	8.5238
1977-06-30	8.5
1977-07-31	8.5
1977-08-31	8.1364
1977-09-30	7.3636
1977-10-31	6.4762
1977-11-30	6.0653
1977-12-31	7.1688
1978-01-31	6.6339
1978-02-28	6.5
1978-03-31	6.5
1978-04-30	6.85
1978-05-31	8.5714
1978-06-30	9.6818
1978-07-31	10
1978-08-31	10
1978-09-30	10
1978-10-31	10
1978-11-30	11.8807
1978-12-31	12.5
1979-01-31	12.5
1979-02-28	13.0625
1979-03-31	13.0682
1979-04-30	12.2105
1979-05-31	12
1979-06-30	13.0476
1979-07-31	14
1979-08-31	14
1979-09-30	14
1979-10-31	14
1979-11-30	15.4489
1979-12-31	17
1980-01-31	17
1980-02-29	17
1980-03-31	17
1980-04-30	17
1980-05-31	17
1980-06-30	17
1980-07-31	16.1522
1980-08-31	16
1980-09-30	16
1980-10-31	16
1980-11-30	15.6
1980-12-31	14
1981-01-31	14
1981-02-28	14
1981-03-31	12.6591
1981-04-30	12
1981-05-31	12
1981-06-30	12
1981-07-31	12
1981-08-31	12
1981-09-30	13
1981-10-31	15.7045
1981-11-30	15.125
1981-12-31	14.5714
1982-01-31	14.375
1982-02-28	13.95
1982-03-31	13.1957
1982-04-30	13
1982-05-31	13
1982-06-30	12.6136
1982-07-31	12.2045
1982-08-31	11.2619
1982-09-30	10.5
1982-10-31	9.8095
1982-11-30	9.1989
1982-12-31	10.0625
1983-01-31	10.7188
1983-02-28	11
1983-03-31	10.7228
1983-04-30	10.2105
1983-05-31	10
1983-06-30	9.7273
1983-07-31	9.5
1983-08-31	9.5
1983-09-30	9.5
1983-10-31	9.0238
1983-11-30	9
1983-12-31	9
1984-01-31	9
1984-02-29	9
1984-03-31	8.7443
1984-04-30	8.5625
1984-05-31	8.9643
1984-06-30	9.1458
1984-07-31	11.1335
1984-08-31	11.0852
1984-09-30	10.5
1984-10-31	10.5
1984-11-30	9.9631
1984-12-31	9.5625
1985-01-31	11.5199
1985-02-28	14
1985-03-31	13.8036
1985-04-30	12.875
1985-05-31	12.625
1985-06-30	12.5438
1985-07-31	12.1685
1985-08-31	11.5
1985-09-30	11.5
1985-10-31	11.5
1985-11-30	11.5
1985-12-31	11.5
1986-01-31	12.2727
1986-02-28	12.5
1986-03-31	12.1316
1986-04-30	10.9375
1986-05-31	10.3875
1986-06-30	10
1986-07-31	10
1986-08-31	10
1986-09-30	10
1986-10-31	10.587
1986-11-30	11
1986-12-31	11
1987-01-31	11
1987-02-28	11
1987-03-31	10.4205
1987-04-30	9.9438
1987-05-31	9.1316
1987-06-30	9
1987-07-31	9
1987-08-31	9.8125
1987-09-30	10
1987-10-31	9.8807
1987-11-30	9.0655
1987-12-31	8.5714
1988-01-31	8.5
1988-02-29	8.9762
1988-03-31	8.7663
1988-04-30	8.1053
1988-05-31	7.7688
1988-06-30	8.5966
1988-07-31	10.2024
1988-08-31	11.0511
1988-09-30	12
1988-10-31	12
1988-11-30	12.1818
1988-12-31	13
1989-01-31	13
1989-02-28	13
1989-03-31	13
1989-04-30	13
1989-05-31	13.2381
1989-06-30	14
1989-07-31	14
1989-08-31	14
1989-09-30	14
1989-10-31	14.8636
1989-11-30	15
1989-12-31	15
1990-01-31	15
1990-02-28	15
1990-03-31	15
1990-04-30	15
1990-05-31	15
1990-06-30	15
1990-07-31	15
1990-08-31	15
1990-09-30	15
1990-10-31	14.2174
1990-11-30	14
1990-12-31	14
1991-01-31	14
1991-02-28	13.65
1991-03-31	12.875
1991-04-30	12.1905
1991-05-31	11.881
1991-06-30	11.5
1991-07-31	11.1957
1991-08-31	11
1991-09-30	10.5476
1991-10-31	10.5
1991-11-30	10.5
1991-12-31	10.5
1992-01-31	10.5
1992-02-29	10.5
1992-03-31	10.5
1992-04-30	10.5
1992-05-31	10.0263
1992-06-30	10
1992-07-31	10
1992-08-31	10
1992-09-30	9.7955
1992-10-31	8.5114
1992-11-30	7.4286
1992-12-31	7
1993-01-31	6.8
1993-02-28	6
1993-03-31	6
1993-04-30	6
1993-05-31	6
1993-06-30	6
1993-07-31	6
1993-08-31	6
1993-09-30	6
1993-10-31	6
1993-11-30	5.8636
1993-12-31	5.5
1994-01-31	5.5
1994-02-28	5.3125
1994-03-31	5.25
1994-04-30	5.25
1994-05-31	5.25
1994-06-30	5.25
1994-07-31	5.25
1994-08-31	5.25
1994-09-30	5.5909
1994-10-31	5.75
1994-11-30	5.75
1994-12-31	6.15
1995-01-31	6.25
1995-02-28	6.7188
1995-03-31	6.75
1995-04-30	6.75
1995-05-31	6.75
1995-06-30	6.75
1995-07-31	6.75
1995-08-31	6.75
1995-09-30	6.75
1995-10-31	6.75
1995-11-30	6.75
1995-12-31	6.6053
1996-01-31	6.3864
1996-02-29	6.25
1996-03-31	6.0595
1996-04-30	6
1996-05-31	6
1996-06-30	5.7875
1996-07-31	5.75
1996-08-31	5.75
1996-09-30	5.75
1996-10-31	5.769
1996-11-30	6
1996-12-31	6
1997-01-31	6
1997-02-28	6
1997-03-31	6
1997-04-30	6
1997-05-31	6.225
1997-06-30	6.4494
1997-07-31	6.6739
1997-08-31	6.95
1997-09-30	7
1997-10-31	7
1997-11-30	7.2125
1997-12-31	7.25
1998-01-31	7.25
1998-02-28	7.25
1998-03-31	7.25
1998-04-30	7.25
1998-05-31	7.25
1998-06-30	7.4659
1998-07-31	7.5
1998-08-31	7.5
1998-09-30	7.5
1998-10-31	7.3068
1998-11-30	6.8452
1998-12-31	6.4167
1999-01-31	6.0375
1999-02-28	5.575
1999-03-31	5.5
1999-04-30	5.2875
1999-05-31	5.25
1999-06-30	5.0795
1999-07-31	5
1999-08-31	5
1999-09-30	5.1875
1999-10-31	5.25
1999-11-30	5.4659
1999-12-31	5.5
2000-01-31	5.65
2000-02-29	5.9167
2000-03-31	6
2000-04-30	6
2000-05-31	6
2000-06-30	6
2000-07-31	6
2000-08-31	6
2000-09-30	6
2000-10-31	6
2000-11-30	6
2000-12-31	6
2001-01-31	6
2001-02-28	5.8125
2001-03-31	5.75
2001-04-30	5.5395
2001-05-31	5.3214
2001-06-30	5.25
2001-07-31	5.25
2001-08-31	5.0114
2001-09-30	4.8875
2001-10-31	4.5326
2001-11-30	4.1136
2001-12-31	4
2002-01-31	4
2002-02-28	4
2002-03-31	4
2002-04-30	4
2002-05-31	4
2002-06-30	4
2002-07-31	4
2002-08-31	4
2002-09-30	4
2002-10-31	4
2002-11-30	4
2002-12-31	4
2003-01-31	4
2003-02-28	3.8
2003-03-31	3.75
2003-04-30	3.75
2003-05-31	3.75
2003-06-30	3.75
2003-07-31	3.587
2003-08-31	3.5
2003-09-30	3.5
2003-10-31	3.5
2003-11-30	3.7125
2003-12-31	3.75
2004-01-31	3.75
2004-02-29	3.9625
2004-03-31	4
2004-04-30	4
2004-05-31	4.2105
2004-06-30	4.4205
2004-07-31	4.5
2004-08-31	4.7143
2004-09-30	4.75
2004-10-31	4.75
2004-11-30	4.75
2004-12-31	4.75
2005-01-31	4.75
2005-02-28	4.75
2005-03-31	4.75
2005-04-30	4.75
2005-05-31	4.75
2005-06-30	4.75
2005-07-31	4.75
2005-08-31	4.5341
2005-09-30	4.5
2005-10-31	4.5
2005-11-30	4.5
2005-12-31	4.5
2006-01-31	4.5
2006-02-28	4.5
2006-03-31	4.5
2006-04-30	4.5
2006-05-31	4.5
2006-06-30	4.5
2006-07-31	4.5
2006-08-31	4.7273
2006-09-30	4.75
2006-10-31	4.75
2006-11-30	4.9318
2006-12-31	5
2007-01-31	5.1705
2007-02-28	5.25
2007-03-31	5.25
2007-04-30	5.25
2007-05-31	5.4286
2007-06-30	5.5
2007-07-31	5.7159
2007-08-31	5.75
2007-09-30	5.75
2007-10-31	5.75
2007-11-30	5.75
2007-12-31	5.5395
2008-01-31	5.5
2008-02-29	5.2976
2008-03-31	5.25
2008-04-30	5.0795
2008-05-31	5
2008-06-30	5
2008-07-31	5
2008-08-31	5
2008-09-30	5
2008-10-31	4.6087
2008-11-30	3.225
2008-12-31	2.1429
2009-01-31	1.5952
2009-02-28	1.075
2009-03-31	0.5682
2009-04-30	0.5
2009-05-31	0.5
2009-06-30	0.5
2009-07-31	0.5
2009-08-31	0.5
2009-09-30	0.5
2009-10-31	0.5
2009-11-30	0.5
2009-12-31	0.5
2010-01-31	0.5
2010-02-28	0.5
2010-03-31	0.5
2010-04-30	0.5
2010-05-31	0.5
2010-06-30	0.5
2010-07-31	0.5
2010-08-31	0.5
2010-09-30	0.5
2010-10-31	0.5
2010-11-30	0.5
2010-12-31	0.5
2011-01-31	0.5
2011-02-28	0.5
2011-03-31	0.5
2011-04-30	0.5
2011-05-31	0.5
2011-06-30	0.5
2011-07-31	0.5
2011-08-31	0.5
2011-09-30	0.5
2011-10-31	0.5
2011-11-30	0.5
2011-12-31	0.5
2012-01-31	0.5
2012-02-29	0.5
2012-03-31	0.5
2012-04-30	0.5
2012-05-31	0.5
2012-06-30	0.5
2012-07-31	0.5
2012-08-31	0.5
2012-09-30	0.5
2012-10-31	0.5
2012-11-30	0.5
2012-12-31	0.5
2013-01-31	0.5
2013-02-28	0.5
2013-03-31	0.5
2013-04-30	0.5
2013-05-31	0.5
2013-06-30	0.5
2013-07-31	0.5
2013-08-31	0.5
2013-09-30	0.5
2013-10-31	0.5
2013-11-30	0.5
2013-12-31	0.5
2014-01-31	0.5
2014-02-28	0.5
2014-03-31	0.5
2014-04-30	0.5
2014-05-31	0.5
2014-06-30	0.5
2014-07-31	0.5
2014-08-31	0.5
2014-09-30	0.5
2014-10-31	0.5
2014-11-30	0.5
2014-12-31	0.5
2015-01-31	0.5
2015-02-28	0.5
2015-03-31	0.5
2015-04-30	0.5
2015-05-31	0.5
2015-06-30	0.5
2015-07-31	0.5