1961 03 99.99 -99.99  26.90 
1961 04 99.99 -99.99  26.90 
1961 05 99.99 -99.99  26.40 
1961 06 99.99 -99.99  25.10 
1961 07 99.99 -99.99  24.50 
1961 08 99.99 -99.99  24.30 
1961 09 99.99 -99.99  25.90 
1961 10 99.99 -99.99  27.20 
1961 11 99.99 -99.99  27.90 
1961 12 99.99 -99.99  28.10 
1962 01 99.99 -99.99  27.60 
1962 02 99.99 -99.99  27.30 
1962 03 99.99 -99.99  27.50 
1962 04 99.99 -99.99  27.00 
1962 05 99.99 -99.99  26.60 
1962 06 99.99 -99.99  26.70 
1962 07 99.99 -99.99  25.90 
1962 08 99.99 -99.99  25.80 
1962 09 99.99 -99.99  26.40 
1962 10 99.99 -99.99  27.60 
1964 04 99.99 -99.99  26.40 
1964 05 99.99 -99.99  26.20 
1964 06 99.99 -99.99  25.20 
1964 07 99.99 -99.99  24.80 
1964 08 99.99 -99.99  24.90 
1964 09 99.99 -99.99  26.00 
1964 10 99.99 -99.99  25.70 
1964 11 99.99 -99.99  26.40 
1964 12 99.99 -99.99  26.80 
1965 01 99.99 -99.99  26.20 
1965 02 99.99 -99.99  26.90 
1965 03 99.99 -99.99  26.70 
1965 04 99.99 -99.99  25.70 
1965 05 99.99 -99.99  28.80 
1965 06 99.99 -99.99  24.90 
1965 07 99.99 -99.99  24.40 
1965 08 99.99 -99.99  25.00 
1965 09 99.99 -99.99  25.80 
1965 10 99.99 -99.99  27.10 
1965 11 99.99 -99.99  27.10 
1965 12 99.99 -99.99  27.80 
1966 01 99.99 -99.99  27.40 
1966 02 99.99 -99.99  26.90 
1966 03 99.99 -99.99  26.30 
1966 04 99.99 -99.99  26.60 
1966 05 99.99 -99.99  26.20 
1966 06 99.99 -99.99  25.00 
1966 07 99.99 -99.99  24.50 
1966 08 99.99 -99.99  25.40 
1966 09 99.99 -99.99  26.30 
1966 10 99.99 -99.99  26.50 
1966 11 99.99 -99.99  27.00 
1966 12 99.99 -99.99  26.70 
1967 01 99.99 -99.99  26.80 
1967 02 99.99 -99.99  27.20 
1967 03 99.99 -99.99  26.50 
1967 04 99.99 -99.99  26.10 
1967 05 99.99 -99.99  28.90 
1967 06 99.99 -99.99  24.60 
1967 07 99.99 -99.99  24.20 
1967 08 99.99 -99.99  24.90 
1967 09 99.99 -99.99  25.70 
1967 10 99.99 -99.99  26.40 
1967 11 99.99 -99.99  27.30 
1967 12 99.99 -99.99  26.20 
1968 01 99.99 -99.99  26.10 
1968 02 99.99 -99.99  26.00 
1968 03 99.99 -99.99  25.50 
1968 04 99.99 -99.99  28.60 
1968 05 99.99 -99.99  26.60 
1968 06 99.99 -99.99  26.40 
1968 07 99.99 -99.99  25.80 
1968 08 99.99 -99.99  25.30 
1968 09 99.99 -99.99  26.10 
1968 10 99.99 -99.99  26.00 
1968 11 99.99 -99.99  26.60 
1968 12 99.99 -99.99  26.10 
1969 01 99.99 -99.99  27.20 
1969 02 99.99 -99.99  28.20 
1969 03 99.99 -99.99  26.60 
1969 04 99.99 -99.99  26.20 
1969 05 99.99 -99.99  25.80 
1969 06 99.99 -99.99  24.80 
1969 07 99.99 -99.99  24.20 
1969 08 99.99 -99.99  24.60 
1969 09 99.99 -99.99  25.20 
1969 10 99.99 -99.99  26.40 
1969 11 99.99 -99.99  26.90 
1969 12 99.99 -99.99  27.20 
1970 01 99.99 -99.99  27.40 
1970 02 99.99 -99.99  27.30 
1970 03 99.99 -99.99  27.30 
1970 04 99.99 -99.99  27.20 
1970 05 99.99 -99.99  26.70 
1970 06 99.99 -99.99  25.50 
1970 07 99.99 -99.99  24.80 
1970 08 99.99 -99.99  24.90 
1970 09 99.99 -99.99  26.20 
1970 10 99.99 -99.99  26.80 
1970 11 99.99 -99.99  26.90 
1970 12 99.99 -99.99  26.70 
1976 01 99.99 -99.99  26.90 
1976 02 99.99 -99.99  27.10 
1976 03 99.99 -99.99  26.40 
1976 04 99.99 -99.99  26.20 
1976 06 99.99 -99.99  25.00 
1976 08 99.99 -99.99  24.90 
1976 11 99.99 -99.99  26.70 
1977 01 99.99 -99.99  26.70 
1977 03 99.99 -99.99  26.40 
1977 04 99.99 -99.99  26.50 
1977 05 99.99 -99.99  26.50 
1977 06 99.99 -99.99  25.70 
1977 08 99.99 -99.99  24.70 
1977 09 99.99 -99.99  25.60 
1977 10 99.99 -99.99  28.30 
1977 11 99.99 -99.99  27.60 
1977 12 99.99 -99.99  26.60 
1978 01 99.99 -99.99  26.80 
1978 02 99.99 -99.99  25.20 
1978 03 99.99 -99.99  25.00 
1978 04 99.99 -99.99  26.40 
1978 05 99.99 -99.99  26.60 
1978 06 99.99 -99.99  25.70 
1978 07 99.99 -99.99  25.50 
1978 09 99.99 -99.99  25.90 
1978 10 99.99 -99.99  26.50 
1978 11 99.99 -99.99  26.30 
1978 12 99.99 -99.99  26.60 
1979 01 99.99 -99.99  27.40 
1979 02 99.99 -99.99  27.10 
1979 03 99.99 -99.99  26.60 
1979 04 99.99 -99.99  26.80 
1979 05 99.99 -99.99  26.60 
1979 06 99.99 -99.99  25.50 
1979 07 99.99 -99.99  25.20 
1979 08 99.99 -99.99  25.20 
1979 09 99.99 -99.99  26.20 
1979 10 99.99 -99.99  26.80 
1979 11 99.99 -99.99  27.00 
1979 12 99.99 -99.99  26.90 
1980 01 99.99 -99.99  27.00 
1980 02 99.99 -99.99  26.80 
1980 03 99.99 -99.99  26.80 
1980 04 99.99 -99.99  26.80 
1980 05 99.99 -99.99  26.70 
1980 06 99.99 -99.99  26.00 
1980 07 99.99 -99.99  25.70 
1980 08 99.99 -99.99  25.50 
1980 09 99.99 -99.99  26.00 
1980 10 99.99 -99.99  26.90 
1980 11 99.99 -99.99  26.90 
1980 12 99.99 -99.99  26.40 
1981 01 99.99 -99.99  26.70 
1981 02 99.99 -99.99  26.60 
1981 03 99.99 -99.99  26.40 
1981 04 99.99 -99.99  26.40 
1981 09 99.99 -99.99  26.30 
1982 06 99.99 -99.99  25.50 
1982 08 99.99 -99.99  24.60 
1982 09 99.99 -99.99  25.40 
1982 10 99.99 -99.99  26.50 
1982 11 99.99 -99.99  27.60 
1982 12 99.99 -99.99  27.10 
1983 01 99.99 -99.99  27.30 
1983 03 99.99 -99.99  27.70 
1983 04 99.99 -99.99  27.40 
1983 10 99.99 -99.99  26.80 
1983 11 99.99 -99.99  26.50 
1984 01 99.99 -99.99  26.30 
1984 02 99.99 -99.99  26.30 
1984 05 99.99 -99.99  26.10 
1984 06 99.99 -99.99  25.30 
1984 07 99.99 -99.99  25.30 
1984 08 99.99 -99.99  25.30 
1984 09 99.99 -99.99  25.30 
1984 10 99.99 -99.99  26.40 
1984 12 99.99 -99.99  26.30 
1985 02 99.99 -99.99  26.40 
1985 03 99.99 -99.99  26.60 
1987 02 99.99 -99.99  26.80 
1987 04 99.99 -99.99  26.60 
1987 10 99.99 -99.99  27.70 
1987 11 99.99 -99.99  26.90 
1988 01 99.99 -99.99  26.40 
1988 02 99.99 -99.99  26.90 
1988 03 99.99 -99.99  27.30 
1988 09 99.99 -99.99  26.40 
1989 03 99.99 -99.99  26.30 
1989 04 99.99 -99.99  26.40 
1989 05 99.99 -99.99  26.10 
1989 08 99.99 -99.99  25.30 
1989 09 99.99 -99.99  26.20 
1989 10 99.99 -99.99  26.00 
1989 12 99.99 -99.99  26.60 
1990 01 99.99 -99.99  26.30 
1990 02 99.99 -99.99  26.70 
1990 03 99.99 -99.99  27.20 
1990 11 99.99 -99.99  27.40 
1991 04 99.99 -99.99  26.90 
1991 05 99.99 -99.99  26.60 
1991 06 99.99 -99.99  25.50 
