1960 01 29.30  23.40  26.34 
1960 02 29.50  23.20  26.35 
1960 03 33.20  23.30  28.25 
1960 04 32.80  23.40  28.09 
1960 05 33.00  23.30  28.15 
1960 07 31.80  23.30  27.55 
1960 08 31.80  23.80  27.80 
1960 09 33.09  23.40  28.25 
1960 10 32.90  23.20  28.05 
1960 11 32.50  23.40  27.95 
1960 12 32.40  23.50  27.95 
1961 01 30.60  23.10  26.85 
1961 02 31.60  23.10  27.35 
1961 03 31.20  23.50  27.35 
1961 04 32.30  23.30  27.80 
1961 05 31.80  23.50  27.65 
1961 06 31.70  22.30  27.00 
1961 07 31.70  21.40  26.55 
1961 08 33.40  20.29  26.85 
1961 09 34.50  21.20  27.85 
1961 10 35.70  22.00  28.85 
1961 11 33.40  23.30  28.35 
1961 12 32.40  23.30  27.85 
1962 01 30.90  23.10  27.00 
1962 02 30.30  23.30  26.80 
1962 03 31.40  23.70  27.55 
1962 04 31.80  23.70  27.75 
1962 05 32.40  24.00  28.20 
1962 06 31.20  23.30  27.25 
1962 07 31.20  23.20  27.20 
1962 08 31.10  22.80  26.95 
1962 09 32.50  22.90  27.70 
1962 10 32.80  23.10  27.95 
1962 11 32.80  23.40  28.09 
1962 12 31.20  23.30  27.25 
1963 01 29.10  23.30  26.20 
1963 02 29.50  23.20  26.35 
1963 03 30.90  23.50  27.20 
1963 04 32.30  24.00  28.15 
1963 07 32.00  22.00  27.00 
1963 08 32.59  20.90  26.75 
1963 09 34.40  21.20  27.80 
1963 10 35.20  22.60  28.90 
1963 11 33.70  22.90  28.30 
1963 12 32.50  23.50  28.00 
1964 01 32.00  23.60  27.80 
1964 02 31.40  23.40  27.40 
1964 03 30.60  23.50  27.05 
1964 04 31.30  23.30  27.30 
1964 05 31.70  23.10  27.40 
1964 06 30.60  22.00  26.30 
1964 07 30.20  21.80  26.00 
1964 08 31.50  21.90  26.70 
1964 09 30.80  22.20  26.50 
1964 10 31.40  22.80  27.09 
1964 12 30.70  22.70  26.70 
1965 01 28.40  22.70  25.55 
1965 02 30.10  22.60  26.35 
1965 03 30.80  22.60  26.70 
1965 04 31.40  22.80  27.09 
1965 05 31.70  22.90  27.30 
1965 06 31.20  21.80  26.50 
1965 07 31.40  21.50  26.45 
1965 08 32.00  21.10  26.55 
1965 09 33.70  22.00  27.85 
1965 10 33.70  23.10  28.40 
1965 11 32.20  23.40  27.80 
1965 12 31.20  23.30  27.25 
1966 01 30.80  23.20  27.00 
1966 02 30.20  23.20  26.70 
1966 03 31.40  23.00  27.20 
1966 04 31.30  23.10  27.20 
1966 05 32.20  23.10  27.65 
1966 06 31.60  22.00  26.80 
1966 07 31.80  21.50  26.65 
1966 08 31.60  22.20  26.90 
1966 09 32.30  22.80  27.55 
1966 10 32.30  23.30  27.80 
1966 11 31.80  23.30  27.55 
1966 12 30.70  23.30  27.00 
1967 01 29.90  22.70  26.30 
1967 02 30.00  22.80  26.40 
1967 03 31.30  22.70  27.00 
1967 04 31.50  22.60  27.05 
1967 05 31.90  23.20  27.55 
1967 06 31.90  21.30  26.59 
1967 07 31.80  20.90  26.34 
1967 08 32.90  20.70  26.80 
1967 09 34.00  21.20  27.60 
1967 10 34.00  22.10  28.05 
1967 12 30.70  22.90  26.80 
1968 01 29.40  22.80  26.09 
1968 02 29.90  22.50  26.20 
1968 03 30.80  22.70  26.75 
1968 04 31.40  22.60  27.00 
1968 05 31.50  22.70  27.10 
1968 06 30.80  22.20  26.50 
1968 07 30.50  22.00  26.25 
1968 08 30.80  22.20  26.50 
1968 09 32.20  22.50  27.35 
1968 10 31.50  22.80  27.15 
1968 11 31.50  23.90  27.70 
1968 12 31.00  23.00  27.00 
1969 01 30.80  23.00  26.90 
1969 02 30.70  22.90  26.80 
1969 03 30.80  23.40  27.09 
1969 04 31.30  23.20  27.25 
1969 05 31.40  23.50  27.45 
1969 06 30.60  22.80  26.70 
1969 07 31.30  22.00  26.65 
1969 08 31.70  21.90  26.80 
1969 09 32.00  22.70  27.35 
1969 10 32.59  22.60  27.59 
1969 11 31.70  22.90  27.30 
1969 12 30.90  22.90  26.90 
1970 01 30.40  22.50  26.45 
1970 02 30.90  23.10  27.00 
1970 03 30.60  23.10  26.85 
1970 04 31.20  23.40  27.30 
1970 05 30.90  23.20  27.05 
1970 06 30.40  22.30  26.34 
1970 07 30.40  21.50  25.95 
1970 08 31.40  22.00  26.70 
1970 09 31.80  22.20  27.00 
1970 10 32.30  22.90  27.59 
1970 11 31.20  23.20  27.20 
1970 12 30.60  22.70  26.65 
1971 01 29.60  22.80  26.20 
1971 02 29.30  22.40  25.84 
1971 03 30.40  22.60  26.50 
1971 04 31.70  22.60  27.15 
1971 05 32.00  22.40  27.20 
1971 06 30.90  22.10  26.50 
1971 07 32.00  21.20  26.60 
1971 08 31.80  21.60  26.70 
1971 09 32.20  22.10  27.15 
1971 10 31.80  22.80  27.30 
1971 11 31.10  22.80  26.95 
1971 12 31.00  22.50  26.75 
1972 01 29.20  22.30  25.75 
1972 02 30.10  22.80  26.45 
1972 03 29.80  22.60  26.20 
1972 04 30.80  22.50  26.65 
1972 05 30.90  22.60  26.75 
1972 06 31.80  22.00  26.90 
1972 07 32.50  21.00  26.75 
1972 08 32.80  22.00  27.40 
1972 09 32.90  22.20  27.55 
1972 10 34.00  22.50  28.25 
1972 11 32.70  23.30  28.00 
1972 12 31.60  23.50  27.55 
1973 01 31.00  23.40  27.20 
1973 02 30.50  23.60  27.05 
1973 03 30.90  23.50  27.20 
1973 04 31.70  23.60  27.65 
1973 05 31.40  23.40  27.40 
1973 06 30.90  23.10  27.00 
1973 07 32.09  22.50  27.30 
1973 08 31.20  22.70  26.95 
1973 09 29.20  23.20  26.20 
1973 10 31.60  23.30  27.45 
1973 11 31.00  23.10  27.05 
1973 12 30.90  22.80  26.84 
1974 01 30.30  22.70  26.50 
1974 02 29.80  22.40  26.09 
1974 03 30.50  22.80  26.65 
1974 04 31.70  23.10  27.40 
1974 05 31.70  23.40  27.55 
1974 06 30.30  22.40  26.34 
1974 07 30.80  22.10  26.45 
1974 08 31.40  22.50  26.95 
1974 09 30.90  22.80  26.84 
1974 10 31.40  23.20  27.30 
1974 11 31.50  23.40  27.45 
1974 12 30.70  23.10  26.90 
1975 01 30.00  22.80  26.40 
1975 02 30.30  22.80  26.55 
1975 03 30.60  22.90  26.75 
1975 04 31.50  23.40  27.45 
1975 05 31.70  23.00  27.35 
1975 06 31.50  22.80  27.15 
1975 07 30.60  21.90  26.25 
1975 08 31.00  22.30  26.65 
1975 09 30.70  22.30  26.50 
1975 10 31.40  22.80  27.09 
1975 11 30.90  22.80  26.84 
1975 12 30.00  23.00  26.50 
