1960 01 29.20  21.90  25.55 
1960 02 29.60  21.70  25.65 
1960 03 30.10  21.50  25.80 
1960 04 29.90  21.80  25.84 
1960 05 29.80  21.70  25.75 
1960 06 28.50  20.70  24.60 
1960 07 28.30  20.80  24.55 
1960 08 27.90  21.00  24.45 
1960 09 28.60  21.20  24.90 
1960 10 29.80  21.30  25.55 
1960 11 29.20  22.20  25.70 
1961 01 29.60  21.50  25.55 
1961 02 30.00  22.40  26.20 
1961 03 30.40  21.90  26.15 
1961 04 30.30  22.20  26.25 
1961 05 29.60  22.20  25.90 
1961 06 28.70  20.20  24.45 
1961 07 27.40  18.90  23.15 
1961 08 27.60  17.79  22.70 
1961 09 29.40  17.79  23.59 
1961 10 32.00  19.79  25.90 
1961 11 30.40  21.90  26.15 
1961 12 30.00  21.80  25.90 
1962 01 29.60  22.40  26.00 
1962 02 29.50  21.60  25.55 
1962 03 29.90  21.80  25.84 
1962 04 29.50  22.00  25.75 
1962 05 29.70  22.40  26.05 
1962 06 29.10  21.40  25.25 
1962 07 27.10  21.10  24.10 
1962 08 27.10  19.70  23.40 
1962 09 28.10  19.90  24.00 
1962 10 28.60  21.80  25.20 
1962 11 29.40  22.90  26.15 
1962 12 29.30  21.80  25.55 
1963 01 28.90  22.10  25.50 
1963 02 29.40  21.50  25.45 
1963 03 29.50  21.70  25.60 
1963 04 30.20  21.80  26.00 
1963 05 30.00  21.60  25.80 
1963 06 28.80  20.80  24.80 
1963 07 26.90  19.29  23.09 
1963 08 27.20  16.90  22.05 
1963 09 28.20  18.70  23.45 
1963 10 29.60  21.00  25.30 
1963 11 29.10  22.50  25.80 
1963 12 29.40  22.30  25.84 
1964 01 29.90  22.70  26.30 
1964 02 30.30  22.80  26.55 
1964 03 29.30  22.20  25.75 
1964 04 29.50  22.80  26.15 
1964 05 29.40  22.50  25.95 
1964 06 28.30  21.70  25.00 
1964 07 27.30  21.30  24.30 
1964 08 27.00  21.20  24.10 
1964 09 27.50  22.20  24.85 
1964 10 27.50  22.40  24.95 
1964 11 28.50  22.20  25.35 
1965 01 28.50  21.50  25.00 
1965 02 29.30  21.80  25.55 
1965 03 29.40  21.30  25.34 
1965 04 29.30  21.60  25.45 
1965 05 28.90  22.00  25.45 
1965 06 29.10  21.40  25.25 
1965 07 27.60  20.00  23.80 
1965 08 27.90  19.79  23.84 
1965 09 28.90  20.40  24.65 
1965 10 30.60  21.60  26.10 
1965 11 29.60  22.40  26.00 
1965 12 29.90  23.50  26.70 
1966 01 29.30  22.20  25.75 
1966 02 29.60  22.00  25.80 
1966 03 29.20  21.90  25.55 
1966 04 30.00  22.40  26.20 
1966 05 29.00  22.20  25.60 
1966 06 28.50  21.10  24.80 
1966 07 27.40  20.50  23.95 
1966 08 26.80  20.29  23.55 
1966 09 27.70  21.50  24.60 
1966 10 28.50  22.10  25.30 
1966 11 29.30  22.80  26.05 
1966 12 28.80  22.40  25.59 
1967 01 29.20  22.00  25.60 
1967 02 29.70  21.70  25.70 
1967 03 29.80  21.60  25.70 
1967 04 29.40  22.10  25.75 
1967 05 29.30  21.30  25.30 
1967 06 27.40  19.60  23.50 
1967 07 26.70  18.79  22.75 
1967 08 27.30  19.40  23.34 
1967 09 28.10  20.10  24.10 
1967 10 30.30  21.20  25.75 
1967 11 28.60  22.40  25.50 
1967 12 29.20  22.30  25.75 
1968 01 29.70  21.90  25.80 
1968 02 29.60  21.30  25.45 
1968 03 30.00  22.10  26.05 
1968 04 30.00  22.00  26.00 
1968 05 29.00  21.90  25.45 
1968 06 28.40  21.60  25.00 
1968 07 27.30  21.50  24.40 
1968 08 27.00  21.00  24.00 
1968 09 28.40  21.80  25.09 
1968 10 28.50  22.30  25.40 
1968 11 29.10  22.50  25.80 
1968 12 29.30  22.10  25.70 
1969 01 29.40  21.60  25.50 
1969 02 30.00  21.90  25.95 
1969 03 29.80  22.30  26.05 
1969 04 29.80  22.70  26.25 
1969 05 29.20  22.50  25.85 
1969 06 28.50  21.50  25.00 
1969 07 27.50  20.80  24.15 
1969 08 27.40  20.60  24.00 
1969 09 28.60  21.00  24.80 
1969 10 30.30  22.00  26.15 
1969 11 29.40  22.40  25.90 
1969 12 30.00  22.40  26.20 
1970 01 29.90  22.10  26.00 
1970 02 30.80  22.20  26.50 
1970 03 30.10  22.10  26.10 
1970 04 29.70  22.70  26.20 
1970 05 29.50  22.40  25.95 
1970 06 28.60  21.80  25.20 
1970 07 27.60  20.40  24.00 
1970 08 27.60  19.40  23.50 
1970 09 28.60  20.70  24.65 
1970 10 29.30  21.40  25.34 
1970 11 28.80  21.90  25.34 
1970 12 29.00  21.90  25.45 
1971 01 31.00  20.00  25.50 
1971 02 31.00  20.00  25.50 
1971 03 29.70  21.40  25.55 
1971 04 29.80  21.40  25.59 
1971 05 29.10  21.90  25.50 
1971 06 28.50  21.00  24.75 
1971 07 28.10  20.40  24.25 
1971 08 28.20  20.70  24.45 
1971 09 28.20  21.10  24.65 
1971 10 28.00  21.80  24.90 
1971 11 27.50  21.30  24.40 
1971 12 29.20  21.90  25.55 
1972 01 29.10  21.60  25.35 
1972 02 29.80  21.60  25.70 
1972 03 29.70  21.80  25.75 
1972 04 29.70  21.90  25.80 
1972 05 28.90  22.10  25.50 
1972 06 28.30  20.10  24.20 
1972 07 27.90  19.70  23.80 
1972 08 29.80  21.10  25.45 
1972 09 29.10  19.00  24.05 
1972 10 30.40  21.60  26.00 
1972 11 30.30  22.60  26.45 
1972 12 29.40  22.50  25.95 
1973 01 29.80  22.50  26.15 
1973 02 29.70  22.50  26.10 
1973 03 29.70  22.30  26.00 
1973 04 30.90  22.50  26.70 
1973 05 30.10  22.90  26.50 
1973 06 30.40  22.10  26.25 
1973 07 29.10  22.00  25.55 
1973 08 30.10  22.00  26.05 
1973 09 29.00  22.20  25.60 
1973 10 30.00  22.80  26.40 
1973 11 30.20  21.90  26.05 
1973 12 30.00  22.90  26.45 
1974 01 29.70  22.60  26.15 
1974 02 30.00  22.00  26.00 
1974 03 30.80  22.10  26.45 
1974 04 30.60  22.70  26.65 
1974 05 30.30  22.40  26.34 
1974 06 29.20  21.60  25.40 
1974 07 29.10  21.50  25.30 
1974 08 29.10  22.10  25.60 
1974 09 29.60  22.80  26.20 
1974 10 29.00  22.90  25.95 
1974 11 29.50  22.70  26.10 
1974 12 30.00  22.50  26.25 
1975 01 29.90  22.30  26.09 
1975 02 30.20  22.40  26.30 
1975 03 29.90  22.70  26.30 
1975 04 30.40  22.10  26.25 
1975 05 29.90  22.50  26.20 
1975 06 29.20  21.30  25.25 
1975 07 28.10  21.50  24.80 
1975 08 28.80  21.20  25.00 
1975 09 29.00  22.10  25.55 
1975 10 29.50  22.30  25.90 
1975 11 29.30  22.80  26.05 
1975 12 29.80  22.40  26.09 
