Month	Percent
1971-09-01	5.00
1971-10-01	4.75
1971-11-01	4.50
1971-12-01	4.50
1972-01-01	4.50
1972-02-01	4.50
1972-03-01	4.50
1972-04-01	4.50
1972-05-01	4.50
1972-06-01	6.00
1972-07-01	6.88
1972-08-01	6.88
1972-09-01	7.00
1972-10-01	7.00
1972-11-01	7.00
1972-12-01	7.50
1973-01-01	8.50
1973-02-01	9.50
1973-03-01	9.50
1973-04-01	9.00
1973-05-01	8.50
1973-06-01	8.00
1973-07-01	8.00
1973-08-01	11.00
1973-09-01	11.00
1973-10-01	11.00
1973-11-01	13.00
1973-12-01	13.00
1974-01-01	13.00
1974-02-01	13.00
1974-03-01	13.00
1974-04-01	12.50
1974-05-01	12.00
1974-06-01	12.00
1974-07-01	12.00
1974-08-01	12.00
1974-09-01	12.00
1974-10-01	12.00
1974-11-01	12.00
1974-12-01	12.00
1975-01-01	11.79
1975-02-01	11.50
1975-03-01	10.89
1975-04-01	10.15
1975-05-01	9.50
1975-06-01	9.50
1975-07-01	9.50
1975-08-01	9.93
1975-09-01	10.00
1975-10-01	10.85
1975-11-01	11.00
1975-12-01	11.00
1976-01-01	10.63
1976-02-01	9.62
1976-03-01	9.50
1976-04-01	9.50
1976-05-01	9.76
1976-06-01	10.55
1976-07-01	10.50
1976-08-01	10.50
1976-09-01	11.39
1976-10-01	13.27
1976-11-01	14.00
1976-12-01	14.00
1977-01-01	13.76
1977-02-01	12.23
1977-03-01	10.83
1977-04-01	9.39
1977-05-01	8.52
1977-06-01	8.50
1977-07-01	8.50
1977-08-01	8.14
1977-09-01	7.36
1977-10-01	6.48
1977-11-01	6.07
1977-12-01	7.17
1978-01-01	6.63
1978-02-01	6.50
1978-03-01	6.50
1978-04-01	6.85
1978-05-01	8.57
1978-06-01	9.68
1978-07-01	10.00
1978-08-01	10.00
1978-09-01	10.00
1978-10-01	10.00
1978-11-01	11.88
1978-12-01	12.50
1979-01-01	12.50
1979-02-01	13.06
1979-03-01	13.07
1979-04-01	12.21
1979-05-01	12.00
1979-06-01	13.05
1979-07-01	14.00
1979-08-01	14.00
1979-09-01	14.00
1979-10-01	14.00
1979-11-01	15.45
1979-12-01	17.00
1980-01-01	17.00
1980-02-01	17.00
1980-03-01	17.00
1980-04-01	17.00
1980-05-01	17.00
1980-06-01	17.00
1980-07-01	16.15
1980-08-01	16.00
1980-09-01	16.00
1980-10-01	16.00
1980-11-01	15.60
1980-12-01	14.00
1981-01-01	14.00
1981-02-01	14.00
1981-03-01	12.66
1981-04-01	12.00
1981-05-01	12.00
1981-06-01	12.00
1981-07-01	12.00
1981-08-01	12.00
1981-09-01	13.00
1981-10-01	15.70
1981-11-01	15.13
1981-12-01	14.57
1982-01-01	14.38
1982-02-01	13.95
1982-03-01	13.20
1982-04-01	13.00
1982-05-01	13.00
1982-06-01	12.61
1982-07-01	12.20
1982-08-01	11.26
1982-09-01	10.50
1982-10-01	9.81
1982-11-01	9.20
1982-12-01	10.06
1983-01-01	10.72
1983-02-01	11.00
1983-03-01	10.72
1983-04-01	10.21
1983-05-01	10.00
1983-06-01	9.73
1983-07-01	9.50
1983-08-01	9.50
1983-09-01	9.50
1983-10-01	9.02
1983-11-01	9.00
1983-12-01	9.00
1984-01-01	9.00
1984-02-01	9.00
1984-03-01	8.74
1984-04-01	8.56
1984-05-01	8.96
1984-06-01	9.15
1984-07-01	11.13
1984-08-01	11.09
1984-09-01	10.50
1984-10-01	10.50
1984-11-01	9.96
1984-12-01	9.56
1985-01-01	11.52
1985-02-01	14.00
1985-03-01	13.80
1985-04-01	12.88
1985-05-01	12.63
1985-06-01	12.54
1985-07-01	12.17
1985-08-01	11.50
1985-09-01	11.50
1985-10-01	11.50
1985-11-01	11.50
1985-12-01	11.50
1986-01-01	12.27
1986-02-01	12.50
1986-03-01	12.13
1986-04-01	10.94
1986-05-01	10.39
1986-06-01	10.00
1986-07-01	10.00
1986-08-01	10.00
1986-09-01	10.00
1986-10-01	10.59
1986-11-01	11.00
1986-12-01	11.00
1987-01-01	11.00
1987-02-01	11.00
1987-03-01	10.42
1987-04-01	9.94
1987-05-01	9.13
1987-06-01	9.00
1987-07-01	9.00
1987-08-01	9.81
1987-09-01	10.00
1987-10-01	9.88
1987-11-01	9.07
1987-12-01	8.57
1988-01-01	8.50
1988-02-01	8.98
1988-03-01	8.77
1988-04-01	8.11
1988-05-01	7.77
1988-06-01	8.60
1988-07-01	10.20
1988-08-01	11.05
1988-09-01	12.00
1988-10-01	12.00
1988-11-01	12.18
1988-12-01	13.00
1989-01-01	13.00
1989-02-01	13.00
1989-03-01	13.00
1989-04-01	13.00
1989-05-01	13.24
1989-06-01	14.00
1989-07-01	14.00
1989-08-01	14.00
1989-09-01	14.00
1989-10-01	14.86
1989-11-01	15.00
1989-12-01	15.00
1990-01-01	15.00
1990-02-01	15.00
1990-03-01	15.00
1990-04-01	15.00
1990-05-01	15.00
1990-06-01	15.00
1990-07-01	15.00
1990-08-01	15.00
1990-09-01	15.00
1990-10-01	14.22
1990-11-01	14.00
1990-12-01	14.00
1991-01-01	14.00
1991-02-01	13.65
1991-03-01	12.88
1991-04-01	12.19
1991-05-01	11.88
1991-06-01	11.50
1991-07-01	11.20
1991-08-01	11.00
1991-09-01	10.55
1991-10-01	10.50
1991-11-01	10.50
1991-12-01	10.50
1992-01-01	10.50
1992-02-01	10.50
1992-03-01	10.50
1992-04-01	10.50
1992-05-01	10.03
1992-06-01	10.00
1992-07-01	10.00
1992-08-01	10.00
1992-09-01	9.80
1992-10-01	8.51
1992-11-01	7.43
1992-12-01	7.00
1993-01-01	6.80
1993-02-01	6.00
1993-03-01	6.00
1993-04-01	6.00
1993-05-01	6.00
1993-06-01	6.00
1993-07-01	6.00
1993-08-01	6.00
1993-09-01	6.00
1993-10-01	6.00
1993-11-01	5.86
1993-12-01	5.50
1994-01-01	5.50
1994-02-01	5.31
1994-03-01	5.25
1994-04-01	5.25
1994-05-01	5.25
1994-06-01	5.25
1994-07-01	5.25
1994-08-01	5.25
1994-09-01	5.59
1994-10-01	5.75
1994-11-01	5.75
1994-12-01	6.15
1995-01-01	6.25
1995-02-01	6.72
1995-03-01	6.75
1995-04-01	6.75
1995-05-01	6.75
1995-06-01	6.75
1995-07-01	6.75
1995-08-01	6.75
1995-09-01	6.75
1995-10-01	6.75
1995-11-01	6.75
1995-12-01	6.61
1996-01-01	6.39
1996-02-01	6.25
1996-03-01	6.06
1996-04-01	6.00
1996-05-01	6.00
1996-06-01	5.79
1996-07-01	5.75
1996-08-01	5.75
1996-09-01	5.75
1996-10-01	5.77
1996-11-01	6.00
1996-12-01	6.00
1997-01-01	6.00
1997-02-01	6.00
1997-03-01	6.00
1997-04-01	6.00
1997-05-01	6.23
1997-06-01	6.45
1997-07-01	6.67
1997-08-01	6.95
1997-09-01	7.00
1997-10-01	7.00
1997-11-01	7.21
1997-12-01	7.25
1998-01-01	7.25
1998-02-01	7.25
1998-03-01	7.25
1998-04-01	7.25
1998-05-01	7.25
1998-06-01	7.47
1998-07-01	7.50
1998-08-01	7.50
1998-09-01	7.50
1998-10-01	7.31
1998-11-01	6.85
1998-12-01	6.42
1999-01-01	6.04
1999-02-01	5.58
1999-03-01	5.50
1999-04-01	5.29
1999-05-01	5.25
1999-06-01	5.08
1999-07-01	5.00
1999-08-01	5.00
1999-09-01	5.19
1999-10-01	5.25
1999-11-01	5.47
1999-12-01	5.50
2000-01-01	5.65
2000-02-01	5.92
2000-03-01	6.00
2000-04-01	6.00
2000-05-01	6.00
2000-06-01	6.00
2000-07-01	6.00
2000-08-01	6.00
2000-09-01	6.00
2000-10-01	6.00
2000-11-01	6.00
2000-12-01	6.00
2001-01-01	6.00
2001-02-01	5.81
2001-03-01	5.75
2001-04-01	5.54
2001-05-01	5.32
2001-06-01	5.25
2001-07-01	5.25
2001-08-01	5.01
2001-09-01	4.89
2001-10-01	4.53
2001-11-01	4.11
2001-12-01	4.00
2002-01-01	4.00
2002-02-01	4.00
2002-03-01	4.00
2002-04-01	4.00
2002-05-01	4.00
2002-06-01	4.00
2002-07-01	4.00
2002-08-01	4.00
2002-09-01	4.00
2002-10-01	4.00
2002-11-01	4.00
2002-12-01	4.00
2003-01-01	4.00
2003-02-01	3.80
2003-03-01	3.75
2003-04-01	3.75
2003-05-01	3.75
2003-06-01	3.75
2003-07-01	3.59
2003-08-01	3.50
2003-09-01	3.50
2003-10-01	3.50
2003-11-01	3.71
2003-12-01	3.75
2004-01-01	3.75
2004-02-01	3.96
2004-03-01	4.00
2004-04-01	4.00
2004-05-01	4.21
2004-06-01	4.42
2004-07-01	4.50
2004-08-01	4.71
2004-09-01	4.75
2004-10-01	4.75
2004-11-01	4.75
2004-12-01	4.75
2005-01-01	4.75
2005-02-01	4.75
2005-03-01	4.75
2005-04-01	4.75
2005-05-01	4.75
2005-06-01	4.75
2005-07-01	4.75
2005-08-01	4.53
2005-09-01	4.50
2005-10-01	4.50
2005-11-01	4.50
2005-12-01	4.50
2006-01-01	4.50
2006-02-01	4.50
2006-03-01	4.50
2006-04-01	4.50
2006-05-01	4.50
2006-06-01	4.50
2006-07-01	4.50
2006-08-01	4.73
2006-09-01	4.75
2006-10-01	4.75
2006-11-01	4.93
2006-12-01	5.00
2007-01-01	5.17
2007-02-01	5.25
2007-03-01	5.25
2007-04-01	5.25
2007-05-01	5.43
2007-06-01	5.50
2007-07-01	5.72
2007-08-01	5.75
2007-09-01	5.75
2007-10-01	5.75
2007-11-01	5.75
2007-12-01	5.54
2008-01-01	5.50
2008-02-01	5.30
2008-03-01	5.25
2008-04-01	5.08
2008-05-01	5.00
2008-06-01	5.00
2008-07-01	5.00
2008-08-01	5.00
2008-09-01	5.00
2008-10-01	4.61
2008-11-01	3.23
2008-12-01	2.14
2009-01-01	1.60
2009-02-01	1.08
2009-03-01	0.57
2009-04-01	0.50
2009-05-01	0.50
2009-06-01	0.50
2009-07-01	0.50
2009-08-01	0.50
2009-09-01	0.50
2009-10-01	0.50
2009-11-01	0.50
2009-12-01	0.50
2010-01-01	0.50
2010-02-01	0.50
2010-03-01	0.50
2010-04-01	0.50
2010-05-01	0.50
2010-06-01	0.50
2010-07-01	0.50
2010-08-01	0.50
2010-09-01	0.50
2010-10-01	0.50
2010-11-01	0.50
2010-12-01	0.50
2011-01-01	0.50
2011-02-01	0.50
2011-03-01	0.50
2011-04-01	0.50
2011-05-01	0.50
2011-06-01	0.50
2011-07-01	0.50
2011-08-01	0.50
2011-09-01	0.50
2011-10-01	0.50
2011-11-01	0.50
2011-12-01	0.50
2012-01-01	0.50
2012-02-01	0.50
2012-03-01	0.50
2012-04-01	0.50
2012-05-01	0.50
2012-06-01	0.50
2012-07-01	0.50
2012-08-01	0.50
2012-09-01	0.50
2012-10-01	0.50
2012-11-01	0.50
2012-12-01	0.50
2013-01-01	0.50
2013-02-01	0.50
2013-03-01	0.50
2013-04-01	0.50
2013-05-01	0.50
2013-06-01	0.50
2013-07-01	0.50
2013-08-01	0.50
2013-09-01	0.50
2013-10-01	0.50
2013-11-01	0.50
2013-12-01	0.50
2014-01-01	0.50
2014-02-01	0.50
2014-03-01	0.50
2014-04-01	0.50
2014-05-01	0.50
2014-06-01	0.50
2014-07-01	0.50
2014-08-01	0.50
2014-09-01	0.50
2014-10-01	0.50
2014-11-01	0.50
2014-12-01	0.50
2015-01-01	0.50
2015-02-01	0.50
2015-03-01	0.50
2015-04-01	0.50
2015-05-01	0.50
2015-06-01	0.50
2015-07-01	0.50