1971 05 99.99 -99.99  26.70 
1971 06 99.99 -99.99  26.20 
1971 07 99.99 -99.99  26.10 
1971 08 99.99 -99.99  26.00 
1971 09 99.99 -99.99  26.20 
1971 10 99.99 -99.99  25.30 
1971 11 99.99 -99.99  24.20 
1971 12 99.99 -99.99  23.60 
1972 01 99.99 -99.99  23.40 
1972 02 99.99 -99.99  23.10 
1972 03 99.99 -99.99  23.90 
1972 04 99.99 -99.99  26.00 
1972 05 99.99 -99.99  27.10 
1972 06 99.99 -99.99  27.50 
1972 07 99.99 -99.99  26.60 
1972 08 99.99 -99.99  25.50 
1972 09 99.99 -99.99  25.70 
1972 10 99.99 -99.99  25.10 
1972 11 99.99 -99.99  25.40 
1972 12 99.99 -99.99  22.80 
1973 01 99.99 -99.99  22.40 
1973 02 99.99 -99.99  23.00 
1973 05 99.99 -99.99  27.20 
1973 06 99.99 -99.99  27.10 
1973 07 99.99 -99.99  28.10 
1973 08 99.99 -99.99  28.40 
1973 09 99.99 -99.99  27.00 
1973 10 99.99 -99.99  25.50 
1973 11 99.99 -99.99  24.80 
1973 12 99.99 -99.99  21.90 
1974 01 99.99 -99.99  23.50 
1974 02 99.99 -99.99  22.50 
1974 03 99.99 -99.99  24.50 
1974 04 99.99 -99.99  25.60 
1974 05 99.99 -99.99  27.00 
1974 06 99.99 -99.99  28.00 
1974 07 99.99 -99.99  26.10 
1974 08 99.99 -99.99  26.00 
1974 09 99.99 -99.99  25.90 
1974 10 99.99 -99.99  24.00 
1974 11 99.99 -99.99  24.30 
1974 12 99.99 -99.99  23.30 
1975 01 99.99 -99.99  23.10 
1975 02 99.99 -99.99  25.00 
1975 03 99.99 -99.99  26.70 
1975 04 99.99 -99.99  27.90 
1975 05 99.99 -99.99  29.10 
1975 06 99.99 -99.99  29.00 
1975 07 99.99 -99.99  28.20 
1975 08 99.99 -99.99  27.90 
1975 09 99.99 -99.99  27.00 
1975 10 99.99 -99.99  26.00 
1975 11 99.99 -99.99  24.60 
1975 12 99.99 -99.99  23.50 
1976 01 99.99 -99.99  22.70 
1976 02 99.99 -99.99  22.90 
1976 03 99.99 -99.99  25.70 
1976 04 99.99 -99.99  26.20 
1976 05 99.99 -99.99  28.00 
1976 06 99.99 -99.99  26.10 
1976 07 99.99 -99.99  27.60 
1976 08 99.99 -99.99  27.80 
1976 09 99.99 -99.99  27.80 
1976 10 99.99 -99.99  26.50 
1976 11 99.99 -99.99  24.70 
1976 12 99.99 -99.99  23.90 
1977 01 99.99 -99.99  24.10 
1977 02 99.99 -99.99  24.50 
1977 04 99.99 -99.99  26.30 
1977 05 99.99 -99.99  27.80 
1977 06 99.99 -99.99  28.10 
1977 07 99.99 -99.99  28.10 
1977 08 99.99 -99.99  29.00 
1977 09 99.99 -99.99  28.60 
1977 10 99.99 -99.99  27.60 
1977 11 99.99 -99.99  25.90 
1977 12 99.99 -99.99  25.60 
1982 12 99.99 -99.99  25.20 
1983 05 99.99 -99.99  29.40 
1983 06 99.99 -99.99  29.60 
1984 01 99.99 -99.99  23.20 
1984 02 99.99 -99.99  24.30 
1984 05 99.99 -99.99  28.20 
1984 06 99.99 -99.99  28.20 
1984 07 99.99 -99.99  27.80 
1984 09 99.99 -99.99  27.60 
1984 12 99.99 -99.99  24.90 
1986 03 99.99 -99.99  23.20 
1986 04 99.99 -99.99  24.80 
1986 06 99.99 -99.99  26.90 
1987 09 99.99 -99.99  27.10 
1987 10 99.99 -99.99  24.20 
1989 02 99.99 -99.99  22.90 
1989 04 99.99 -99.99  25.70 
1990 07 99.99 -99.99  26.60 
1990 08 99.99 -99.99  26.50 
1990 09 99.99 -99.99  26.40 
1991 02 99.99 -99.99  23.60 
1991 03 99.99 -99.99  24.80 
1991 05 99.99 -99.99  27.10 
1991 06 99.99 -99.99  27.60 
1991 08 99.99 -99.99  27.00 
1992 05 99.99 -99.99  25.80 
1992 07 99.99 -99.99  26.50 
1992 09 99.99 -99.99  26.70 
1992 11 99.99 -99.99  25.40 
1992 12 99.99 -99.99  24.20 
1993 01 99.99 -99.99  24.70 
1993 05 99.99 -99.99  27.20 
1993 06 99.99 -99.99  27.90 
1993 07 99.99 -99.99  27.70 
1993 08 99.99 -99.99  22.70 
1993 09 99.99 -99.99  27.60 
1993 10 99.99 -99.99  27.10 
1993 11 99.99 -99.99  27.10 
1993 12 99.99 -99.99  24.40 
1994 01 99.99 -99.99  24.40 
1994 02 99.99 -99.99  25.50 
1994 03 99.99 -99.99  25.60 
1994 04 99.99 -99.99  27.90 
1994 05 99.99 -99.99  28.70 
1994 07 99.99 -99.99  28.70 
1994 08 99.99 -99.99  27.10 
1994 09 99.99 -99.99  26.60 
1994 10 99.99 -99.99  28.10 
1994 11 99.99 -99.99  26.00 
1994 12 99.99 -99.99  25.10 
1995 01 99.99 -99.99  25.00 
1995 02 99.99 -99.99  25.00 
1995 03 99.99 -99.99  26.20 
1995 04 99.99 -99.99  28.70 
1995 05 99.99 -99.99  29.90 
1995 06 99.99 -99.99  29.50 
1995 07 99.99 -99.99  28.20 
1995 08 99.99 -99.99  29.10 
1995 09 99.99 -99.99  28.10 
1996 01 99.99 -99.99  23.80 
1996 02 99.99 -99.99  24.20 
1996 03 99.99 -99.99  24.40 
1996 04 99.99 -99.99  27.40 
1996 05 99.99 -99.99  28.00 
1996 08 99.99 -99.99  27.80 
1997 01 99.99 -99.99  24.40 
1997 02 99.99 -99.99  25.50 
2000 10 99.99 -99.99  26.20 
2001 07 99.99 -99.99  28.10 
2001 11 99.99 -99.99  25.00 
2002 05 99.99 -99.99  28.00 
2002 06 99.99 -99.99  28.70 
2002 12 99.99 -99.99  24.80 
2003 01 99.99 -99.99  22.10 
2003 02 99.99 -99.99  25.50 
2003 03 99.99 -99.99  27.10 
2003 07 99.99 -99.99  27.80 
2004 01 99.99 -99.99  24.00 
2005 12 99.99 -99.99  24.60 
2006 06 99.99 -99.99  28.30 
2006 07 99.99 -99.99  28.20 
2006 12 99.99 -99.99  24.80 
2007 04 99.99 -99.99  27.40 
2007 05 99.99 -99.99  28.00 
2007 06 99.99 -99.99  28.60 
2007 07 99.99 -99.99  28.60 
2007 08 99.99 -99.99  28.20 
2007 09 99.99 -99.99  27.30 
2007 10 99.99 -99.99  26.40 
2007 11 99.99 -99.99  24.10 
2007 12 99.99 -99.99  24.50 
2008 01 99.99 -99.99  24.40 
2008 02 99.99 -99.99  25.00 
2008 03 99.99 -99.99  25.70 
2008 04 99.99 -99.99  26.80 
2008 05 99.99 -99.99  28.50 
2008 06 99.99 -99.99  28.00 
2008 07 99.99 -99.99  27.70 
2008 08 99.99 -99.99  28.50 
2008 09 99.99 -99.99  28.50 
2008 11 99.99 -99.99  23.20 
2009 01 99.99 -99.99  24.00 
2009 02 99.99 -99.99  24.10 
2009 05 99.99 -99.99  28.30 
2009 07 99.99 -99.99  28.50 
2009 08 99.99 -99.99  28.00 
2009 09 99.99 -99.99  28.80 
2009 11 99.99 -99.99  25.30 
2010 09 99.99 -99.99  28.70 
2010 12 99.99 -99.99  22.80 
2011 01 99.99 -99.99  24.40 
2011 12 99.99 -99.99  24.10 
2012 01 99.99 -99.99  25.00 
2012 02 99.99 -99.99  24.20 
2012 03 99.99 -99.99  25.10 
2012 05 99.99 -99.99  27.00 
2012 06 99.99 -99.99  27.60 
2012 07 99.99 -99.99  26.70 
2012 08 99.99 -99.99  26.90 
2012 09 99.99 -99.99  26.80 
2012 10 99.99 -99.99  25.30 
2012 11 99.99 -99.99  22.90 
2012 12 99.99 -99.99  23.50 
2013 01 99.99 -99.99  23.30 
2013 02 99.99 -99.99  24.20 
2013 03 99.99 -99.99  23.00 
2013 05 99.99 -99.99  26.70 
2013 06 99.99 -99.99  26.50 
2013 10 99.99 -99.99  26.30 
