1956 01 26.80 -99.99 -99.99 
1956 02 27.30 -99.99 -99.99 
1956 03 28.40 -99.99 -99.99 
1956 04 28.30 -99.99 -99.99 
1956 05 27.70 -99.99 -99.99 
1956 06 28.30 -99.99 -99.99 
1956 07 27.70 -99.99 -99.99 
1956 08 27.60 -99.99 -99.99 
1956 09 27.70 -99.99 -99.99 
1956 10 27.20 -99.99 -99.99 
1956 11 27.30 -99.99 -99.99 
1957 01 27.60 -99.99 -99.99 
1957 02 27.60 -99.99 -99.99 
1957 03 28.70 -99.99 -99.99 
1957 04 28.60 -99.99 -99.99 
1957 05 30.40 -99.99 -99.99 
1957 06 28.80 -99.99 -99.99 
1957 07 28.10 -99.99 -99.99 
1957 08 27.10 -99.99 -99.99 
1957 09 28.30 -99.99 -99.99 
1957 10 28.80 -99.99 -99.99 
1957 11 28.40 -99.99 -99.99 
1957 12 28.90 -99.99 -99.99 
1958 01 28.20  18.79  23.50 
1958 02 29.60  18.10  23.85 
1958 03 30.80  18.20  24.50 
1958 04 31.40  19.60  25.50 
1958 05 31.00  21.00  26.00 
1958 06 30.90  20.80  25.84 
1958 07 29.60  20.00  24.80 
1958 08 29.40  20.60  25.00 
1958 09 29.60  20.80  25.20 
1958 10 29.00  20.70  24.85 
1958 11 28.50  20.29  24.40 
1958 12 28.60  19.40  24.00 
1959 01 28.80  18.79  23.80 
1959 02 30.30  18.40  24.34 
1959 03 30.10  19.70  24.90 
1959 04 30.80  20.20  25.50 
1959 05 30.20  20.40  25.30 
1959 06 29.20  20.50  24.85 
1959 07 28.30  20.10  24.20 
1959 08 28.60  19.79  24.20 
1959 09 28.90  20.20  24.55 
1959 10 29.40  20.20  24.80 
1959 11 29.10  20.10  24.60 
1959 12 29.00  19.40  24.20 
1960 01 29.60  19.00  24.30 
1960 02 28.40  19.40  23.90 
1960 03 29.80  19.29  24.55 
1960 04 29.80  20.20  25.00 
1960 05 29.90  20.70  25.30 
1960 06 29.40  20.50  24.95 
1960 07 29.00  20.10  24.55 
1960 08 30.00  20.70  25.35 
1960 09 28.30  20.29  24.30 
1960 10 28.50  20.50  24.50 
1960 11 28.80  19.90  24.34 
1960 12 27.30  19.29  23.30 
1961 01 25.50  18.90  22.20 
1961 02 28.40  19.50  23.95 
1961 03 29.60  18.90  24.25 
1961 04 30.80  20.00  25.40 
1961 05 30.20  20.80  25.50 
1961 06 29.20  20.90  25.05 
1961 07 29.00  19.70  24.35 
1961 08 29.00  20.50  24.75 
1961 09 28.80  20.29  24.55 
1961 10 28.60  19.70  24.15 
1961 11 30.00  19.60  24.80 
1961 12 28.80  19.70  24.25 
1962 01 26.20  19.60  22.90 
1962 02 25.20  19.29  22.25 
1962 03 28.20  19.40  23.80 
1962 04 29.30  20.00  24.65 
1962 05 29.50  20.80  25.15 
1962 06 28.30  20.40  24.34 
1962 07 27.90  20.70  24.30 
1962 08 27.90  20.29  24.09 
1962 09 27.40  20.10  23.75 
1962 10 28.30  20.40  24.34 
1962 11 27.30  19.70  23.50 
1962 12 26.50  19.50  23.00 
1963 01 24.90  19.20  22.05 
1963 02 24.60  18.79  21.70 
1963 03 26.60  19.20  22.90 
1963 04 28.80  19.00  23.90 
1963 05 30.20  20.90  25.55 
1963 06 28.70  20.50  24.60 
1963 07 28.20  20.10  24.15 
1963 08 27.30  20.20  23.75 
1963 09 28.30  20.50  24.40 
1963 10 27.60  20.10  23.85 
1963 11 28.40  19.79  24.09 
1963 12 28.50  19.20  23.85 
1964 01 28.70  19.29  24.00 
1964 02 27.60  19.10  23.35 
1964 03 28.90  18.90  23.90 
1964 04 28.80  19.79  24.30 
1964 05 29.00  20.60  24.80 
1964 06 28.40  19.90  24.15 
1964 07 28.70  19.60  24.15 
1964 08 29.20  19.70  24.45 
1964 09 28.30  19.70  24.00 
1964 10 28.20  19.90  24.05 
1964 11 28.20  19.79  24.00 
1964 12 27.20  19.10  23.15 
1965 04 28.90  19.40  24.15 
1965 05 29.10  19.90  24.50 
1965 06 28.20  20.10  24.15 
1965 07 27.60  19.79  23.70 
1965 08 28.30  19.79  24.05 
1965 09 28.40  20.10  24.25 
1965 10 28.50  19.70  24.10 
1965 11 27.90  19.50  23.70 
1965 12 28.60  19.00  23.80 
1966 01 29.10  18.90  24.00 
1966 02 29.80  18.60  24.20 
1966 03 30.50  19.00  24.75 
1966 04 30.90  20.20  25.55 
1966 05 29.70  20.90  25.30 
1966 06 28.90  20.00  24.45 
1966 07 27.70  19.90  23.80 
1966 08 28.70  20.10  24.40 
1966 09 29.10  20.10  24.60 
1966 10 28.50  20.10  24.30 
1966 11 28.40  19.90  24.15 
1966 12 27.90  19.70  23.80 
1967 01 27.30  19.20  23.25 
1967 02 26.80  19.20  23.00 
1967 03 28.10  19.10  23.60 
1967 04 30.00  19.50  24.75 
1967 05 29.70  20.50  25.10 
1967 06 29.00  20.29  24.65 
1967 07 28.40  20.40  24.40 
1967 08 28.60  20.40  24.50 
1967 09 28.20  20.10  24.15 
1967 10 27.60  20.00  23.80 
1967 11 27.00  19.79  23.40 
1967 12 27.20  18.79  23.00 
1968 01 26.70  19.10  22.90 
1968 02 26.40  18.60  22.50 
1968 03 29.00  18.40  23.70 
1968 04 30.60  19.70  25.15 
1968 05 30.40  20.60  25.50 
1968 06 29.50  20.60  25.05 
1968 07 29.20  20.70  24.95 
1968 08 28.70  20.60  24.65 
1968 09 28.90  20.29  24.59 
1968 10 28.20  19.90  24.05 
1968 11 27.80  19.10  23.45 
1968 12 26.90  19.20  23.05 
1969 01 27.90  18.00  22.95 
1969 02 28.50  18.29  23.40 
1969 03 29.70  19.40  24.55 
1969 04 30.60  20.40  25.50 
1969 05 30.40  21.30  25.84 
1969 06 29.10  21.10  25.10 
1969 07 28.60  20.20  24.40 
1969 08 29.10  20.40  24.75 
1969 09 28.70  20.40  24.55 
1969 10 28.90  20.20  24.55 
1969 11 28.10  20.10  24.10 
1969 12 28.60  19.79  24.20 
1970 01 28.30  18.90  23.59 
1970 02 27.50  19.90  23.70 
1970 03 29.40  19.79  24.59 
1970 04 31.00  20.29  25.65 
1970 05 30.60  21.00  25.80 
1970 06 28.90  20.70  24.80 
1970 07 28.10  20.40  24.25 
1970 08 29.00  20.20  24.60 
1970 09 29.20  20.29  24.75 
1970 10 28.00  20.70  24.35 
1970 11 28.60  20.20  24.40 
1970 12 27.60  20.29  23.95 
1971 01 26.40  18.79  22.59 
1971 02 28.10  19.79  23.95 
1971 03 26.50  19.29  22.90 
1971 04 28.70  19.60  24.15 
1971 05 29.30  20.70  25.00 
1971 06 28.30  20.29  24.30 
1971 08 28.90  19.50  24.20 
1971 09 28.80  20.20  24.50 
1971 10 27.70  20.10  23.90 
1971 11 27.70  20.10  23.90 
1971 12 28.50  19.60  24.05 
1972 01 26.90  19.10  23.00 
1972 02 28.00  19.00  23.50 
1972 03 27.20  19.29  23.25 
1972 04 29.40  19.79  24.59 
1972 05 30.10  20.50  25.30 
1972 06 29.10  21.00  25.05 
1972 07 26.00  18.10  22.05 
1972 08 29.60  20.50  25.05 
1972 09 28.90  20.50  24.70 
1972 10 29.80  19.70  24.75 
1972 11 29.50  19.70  24.60 
1972 12 29.20  19.40  24.30 
1973 01 29.30  17.79  23.55 
1973 02 29.90  17.70  23.80 
1973 03 30.50  19.20  24.85 
1973 04 30.40  20.20  25.30 
1973 05 30.50  20.70  25.60 
1973 06 29.60  20.70  25.15 
1973 07 29.30  20.60  24.95 
1973 08 29.40  20.40  24.90 
1973 09 28.60  20.10  24.35 
1973 10 29.60  20.10  24.85 
1973 11 27.80  19.90  23.84 
1973 12 28.70  19.40  24.05 
1974 01 26.70  18.90  22.80 
1974 02 27.90  19.00  23.45 
1974 03 28.60  18.40  23.50 
1974 04 29.20  20.40  24.80 
1974 05 30.10  20.20  25.15 
1974 06 29.00  23.90  26.45 
1974 07 28.70  19.90  24.30 
1974 08 29.70  20.29  25.00 
1974 09 29.30  19.70  24.50 
1974 10 27.60  23.90  25.75 
1974 11 26.80  18.60  22.70 
1974 12 28.10  19.60  23.85 
1975 01 26.30  20.10  23.20 
1975 02 28.90  16.40  22.65 
1975 03 29.60  18.79  24.20 
1975 04 31.30  19.40  25.34 
1975 05 29.30  19.60  24.45 
1975 06 28.50  20.10  24.30 
1975 07 28.60  19.60  24.10 
1975 08 29.50  20.40  24.95 
1975 09 28.70  17.60  23.15 
1975 10 28.90  19.90  24.40 
1975 11 28.70  19.29  24.00 
1975 12 28.30  19.00  23.65 
