1961 01 99.99 -99.99  25.50 
1961 02 99.99 -99.99  24.30 
1961 05 99.99 -99.99  34.40 
1961 08 99.99 -99.99  25.60 
1962 01 99.99 -99.99  21.30 
1962 02 99.99 -99.99  24.80 
1962 03 99.99 -99.99  30.80 
1962 04 99.99 -99.99  32.70 
1962 05 99.99 -99.99  33.40 
1962 06 99.99 -99.99  30.40 
1962 07 99.99 -99.99  29.10 
1962 08 99.99 -99.99  25.90 
1962 09 99.99 -99.99  27.40 
1962 10 99.99 -99.99  29.20 
1962 11 99.99 -99.99  29.30 
1962 12 99.99 -99.99  25.30 
1963 01 99.99 -99.99  24.20 
1963 02 99.99 -99.99  28.40 
1963 03 99.99 -99.99  29.60 
1963 04 99.99 -99.99  33.00 
1963 05 99.99 -99.99  33.70 
1963 06 99.99 -99.99  31.30 
1963 07 99.99 -99.99  28.40 
1963 08 99.99 -99.99  27.20 
1963 09 99.99 -99.99  28.00 
1963 10 99.99 -99.99  29.00 
1963 11 99.99 -99.99  26.40 
1963 12 99.99 -99.99  25.00 
1964 01 99.99 -99.99  24.50 
1964 02 99.99 -99.99  25.50 
1964 03 99.99 -99.99  31.60 
1964 04 99.99 -99.99  33.30 
1964 05 99.99 -99.99  33.50 
1964 06 99.99 -99.99  30.70 
1964 07 99.99 -99.99  28.00 
1964 08 99.99 -99.99  25.90 
1964 09 99.99 -99.99  27.50 
1964 10 99.99 -99.99  28.10 
1964 11 99.99 -99.99  24.50 
1964 12 99.99 -99.99  24.50 
1965 01 99.99 -99.99  25.00 
1965 02 99.99 -99.99  26.60 
1965 03 99.99 -99.99  29.30 
1965 04 99.99 -99.99  33.09 
1965 05 99.99 -99.99  33.30 
1965 06 99.99 -99.99  30.70 
1965 07 99.99 -99.99  27.90 
1965 08 99.99 -99.99  26.90 
1965 09 99.99 -99.99  28.60 
1965 11 99.99 -99.99  26.00 
1965 12 99.99 -99.99  23.80 
1966 01 99.99 -99.99  24.30 
1966 02 99.99 -99.99  25.80 
1966 03 99.99 -99.99  30.00 
1966 05 99.99 -99.99  32.09 
1966 06 99.99 -99.99  27.50 
1966 07 99.99 -99.99  30.10 
1966 08 99.99 -99.99  27.70 
1966 09 99.99 -99.99  28.50 
1966 10 99.99 -99.99  29.40 
1966 11 99.99 -99.99  26.80 
1966 12 99.99 -99.99  24.60 
1967 01 99.99 -99.99  23.30 
1967 02 99.99 -99.99  26.30 
1967 03 99.99 -99.99  29.00 
1967 04 99.99 -99.99  32.70 
1967 05 99.99 -99.99  33.80 
1967 06 99.99 -99.99  32.20 
1967 07 99.99 -99.99  29.00 
1967 08 99.99 -99.99  27.00 
1967 09 99.99 -99.99  27.70 
1967 10 99.99 -99.99  28.10 
1967 11 99.99 -99.99  24.10 
1967 12 99.99 -99.99  25.60 
1968 01 34.20  13.10  23.65 
1968 02 36.80  14.30  25.55 
1968 03 40.09  19.20  29.65 
1968 04 41.00  22.60  31.80 
1968 05 39.80  25.50  32.65 
1968 06 34.50  23.10  28.80 
1968 07 32.40  22.20  27.30 
1968 08 32.09  22.20  27.15 
1968 09 34.80  22.60  28.70 
1968 10 38.00  21.20  29.60 
1968 11 38.00  18.20  28.10 
1968 12 36.00  14.60  25.30 
1969 01 32.70  13.00  22.85 
1969 02 39.09  16.50  27.80 
1969 03 42.10  22.70  32.40 
1969 04 42.00  26.10  34.05 
1969 05 40.70  26.30  33.50 
1969 07 34.09  23.50  28.80 
1969 08 32.90  22.50  27.70 
1969 09 34.70  22.60  28.65 
1969 10 38.00  22.90  30.45 
1969 11 37.59  18.29  27.95 
1969 12 37.00  15.40  26.20 
1970 01 35.09  15.20  25.15 
1970 02 36.90  16.50  26.70 
1970 03 39.59  19.40  29.50 
1970 04 42.70  24.90  33.80 
1970 05 41.90  27.10  34.50 
1970 06 40.00  26.10  33.05 
1970 07 34.50  24.00  29.25 
1970 08 31.50  22.30  26.90 
1970 09 33.30  22.80  28.05 
1970 10 37.30  20.60  28.95 
1970 12 34.80  13.00  23.90 
1971 01 33.00  13.30  23.15 
1971 02 38.30  15.70  27.00 
1971 03 43.00  22.10  32.55 
1971 04 42.00  23.50  32.75 
1971 05 42.30  26.00  34.15 
1971 06 40.00  26.00  33.00 
1971 07 35.50  23.50  29.50 
1971 08 31.80  22.20  27.00 
1971 09 34.40  22.10  28.25 
1971 10 37.90  20.50  29.20 
1971 11 37.80  16.90  27.34 
1971 12 34.20  13.80  24.00 
1972 01 34.50  14.30  24.40 
1972 02 37.70  17.20  27.45 
1972 03 42.10  21.60  31.84 
1972 04 42.50  25.70  34.09 
1972 05 41.40  27.70  34.55 
1972 06 39.40  25.90  32.65 
1972 07 36.30  25.00  30.65 
1972 08 33.20  22.40  27.80 
1972 09 35.59  23.00  29.30 
1972 10 37.40  21.90  29.65 
1972 11 35.90  15.90  25.90 
1972 12 37.00  15.00  26.00 
1973 01 36.59  15.40  26.00 
1973 02 40.09  17.50  28.80 
1973 03 41.40  20.60  31.00 
1973 04 43.80  26.10  34.95 
1973 05 42.40  26.00  34.20 
1973 06 40.59  26.90  33.75 
1973 07 38.40  25.30  31.85 
1973 08 34.20  22.70  28.45 
1973 09 37.09  23.60  30.34 
1973 10 38.90  22.70  30.80 
1973 11 36.50  17.29  26.90 
1973 12 36.80  15.40  26.09 
1974 01 33.59  14.50  24.05 
1974 02 37.70  17.00  27.35 
1974 03 40.09  20.10  30.09 
1974 04 43.10  26.30  34.69 
1974 05 40.90  26.30  33.59 
1974 06 39.90  25.90  32.90 
1974 07 33.40  23.40  28.40 
1974 08 32.20  22.50  27.35 
1974 09 33.00  22.00  27.50 
1974 10 38.00  21.70  29.85 
1974 11 37.50  18.40  27.95 
1974 12 33.00  13.90  23.45 
1975 01 31.70  13.10  22.40 
1975 02 36.59  18.60  27.59 
1975 03 40.70  20.90  30.80 
1975 04 42.50  25.10  33.80 
1975 05 41.30  26.60  33.95 
1975 07 32.90  23.10  28.00 
1975 08 31.50  22.20  26.85 
1975 09 32.59  22.40  27.50 
1975 10 37.40  21.40  29.40 
1975 11 37.90  17.50  27.70 
1975 12 32.90  13.70  23.30 
1976 01 34.20  14.10  24.15 
1976 02 38.30  18.40  28.34 
1976 03 39.00  21.00  30.00 
1976 04 41.70  25.90  33.80 
1976 05 40.90  26.20  33.55 
1976 06 37.30  25.00  31.15 
1976 07 33.40  23.20  28.30 
1976 08 33.50  22.80  28.15 
1976 09 34.20  22.80  28.50 
1976 10 36.70  23.00  29.85 
1976 11 37.09  17.90  27.50 
1976 12 35.59  15.90  25.75 
1977 01 34.59  14.80  24.70 
1977 02 35.90  16.60  26.25 
1977 03 37.90  20.20  29.05 
1977 04 42.00  23.60  32.80 
1977 05 41.80  26.50  34.15 
1977 07 35.40  24.80  30.10 
1977 08 31.30  22.70  27.00 
1977 09 35.40  23.60  29.50 
1977 10 37.50  21.40  29.45 
1977 11 36.70  16.29  26.50 
1977 12 32.59  13.30  22.95 
1978 01 33.80  12.70  23.25 
1978 02 37.70  16.40  27.05 
1978 03 40.30  20.40  30.34 
1978 04 42.00  27.00  34.50 
1978 05 40.40  26.10  33.25 
1978 06 38.20  25.90  32.05 
1978 07 33.50  23.30  28.40 
1978 08 32.90  23.10  28.00 
1978 09 34.90  22.40  28.65 
1978 10 37.59  22.60  30.09 
1978 12 35.20  14.60  24.90 
