1951 01 28.30  20.50  24.40 
1951 02 28.30  20.80  24.55 
1951 03 29.70  20.50  25.10 
1951 04 31.00  22.90  26.95 
1951 05 31.80  23.20  27.50 
1951 06 32.20  23.80  28.00 
1951 07 31.60  23.90  27.75 
1951 08 32.20  24.10  28.15 
1951 09 31.20  23.50  27.35 
1951 10 32.09  23.20  27.65 
1951 11 29.30  22.90  26.09 
1951 12 28.20  22.20  25.20 
1952 01 28.60  21.20  24.90 
1952 02 29.00  21.40  25.20 
1952 03 30.20  21.60  25.90 
1952 04 31.30  22.60  26.95 
1952 05 31.90  23.60  27.75 
1952 06 32.30  23.60  27.95 
1952 07 33.80  24.70  29.25 
1952 08 31.70  23.40  27.55 
1952 09 31.50  23.20  27.35 
1952 10 30.90  23.30  27.09 
1952 11 31.10  22.10  26.60 
1952 12 28.70  21.80  25.25 
1953 01 27.50  20.50  24.00 
1953 02 28.40  21.60  25.00 
1953 03 30.50  21.90  26.20 
1953 04 31.30  23.00  27.15 
1953 05 33.30  23.80  28.55 
1953 06 31.80  23.60  27.70 
1953 07 33.30  23.30  28.30 
1953 08 32.59  23.80  28.20 
1953 09 32.90  23.30  28.10 
1953 10 31.70  23.10  27.40 
1953 11 30.10  22.80  26.45 
1953 12 28.20  22.10  25.15 
1954 01 29.60  21.10  25.35 
1954 02 30.10  21.30  25.70 
1954 03 29.60  22.20  25.90 
1954 04 32.30  22.80  27.55 
1954 05 32.30  23.60  27.95 
1954 06 33.30  23.70  28.50 
1954 07 32.70  23.40  28.05 
1954 08 32.30  24.20  28.25 
1954 09 32.50  23.70  28.10 
1954 10 31.70  22.70  27.20 
1954 11 30.40  21.40  25.90 
1954 12 28.60  21.70  25.15 
1955 01 27.50  20.29  23.90 
1955 02 29.00  20.10  24.55 
1955 03 30.20  21.10  25.65 
1955 04 31.60  22.60  27.10 
1955 05 32.50  23.30  27.90 
1955 06 31.90  23.00  27.45 
1955 07 32.80  23.10  27.95 
1955 08 33.09  23.00  28.05 
1955 09 32.40  23.10  27.75 
1955 10 31.60  22.50  27.05 
1955 11 30.00  21.90  25.95 
1955 12 28.70  19.40  24.05 
1956 01 28.60  21.10  24.85 
1956 02 29.00  21.00  25.00 
1956 03 29.30  21.70  25.50 
1956 04 30.60  22.80  26.70 
1956 05 31.70  23.20  27.45 
1956 06 32.40  23.40  27.90 
1956 07 33.80  23.40  28.59 
1956 08 31.40  23.20  27.30 
1956 09 32.09  23.70  27.90 
1956 10 31.10  22.50  26.80 
1956 11 30.40  22.10  26.25 
1956 12 28.20  21.90  25.05 
1957 01 28.70  21.30  25.00 
1957 02 29.40  20.10  24.75 
1957 03 30.50  21.50  26.00 
1957 04 31.50  22.70  27.10 
1957 05 33.80  22.90  28.34 
1957 06 33.30  23.80  28.55 
1957 07 32.09  23.40  27.75 
1957 08 32.70  24.00  28.35 
1957 09 32.50  24.00  28.25 
1957 10 31.70  22.60  27.15 
1957 11 30.80  21.50  26.15 
1957 12 30.50  21.90  26.20 
1958 01 29.30  21.30  25.30 
1958 02 28.70  20.50  24.60 
1958 03 30.10  21.40  25.75 
1958 04 32.00  22.30  27.15 
1958 05 32.80  23.70  28.25 
1958 06 33.59  24.70  29.15 
1958 07 33.30  24.30  28.80 
1958 08 32.40  23.50  27.95 
1958 09 32.30  24.30  28.30 
1958 10 31.20  23.30  27.25 
1958 11 30.60  21.90  26.25 
1958 12 30.00  19.79  24.90 
1959 01 28.70  20.20  24.45 
1959 02 29.20  20.29  24.75 
1959 03 29.40  21.90  25.65 
1959 04 31.90  22.90  27.40 
1959 05 32.20  23.70  27.95 
1959 06 34.90  24.00  29.45 
1959 07 33.20  23.30  28.25 
1959 08 32.70  23.80  28.25 
1959 09 33.20  23.70  28.45 
1959 10 32.50  22.60  27.55 
1959 11 30.20  22.60  26.40 
1959 12 29.50  21.70  25.60 
1960 01 29.30  21.10  25.20 
1960 02 29.20  21.20  25.20 
1960 03 31.60  21.10  26.35 
1960 04 32.40  23.00  27.70 
1960 05 33.70  23.70  28.70 
1960 06 33.40  23.90  28.65 
1960 07 33.70  24.00  28.85 
1960 08 32.59  24.20  28.40 
1960 09 32.20  23.40  27.80 
1960 10 31.80  22.50  27.15 
1960 11 31.10  22.10  26.60 
1960 12 30.00  21.10  25.55 
1961 01 28.20  19.40  23.80 
1961 03 31.00  22.30  26.65 
1961 04 31.80  22.90  27.34 
1961 05 33.00  24.10  28.55 
1961 06 32.70  23.50  28.10 
1961 07 32.30  23.60  27.95 
1961 08 32.40  23.90  28.15 
1961 09 33.09  23.60  28.34 
1961 10 31.60  22.10  26.85 
1961 11 29.90  21.50  25.70 
1961 12 30.10  21.30  25.70 
1962 01 28.30  20.29  24.30 
1962 02 28.50  19.40  23.95 
1962 03 30.60  22.00  26.30 
1962 04 31.00  23.10  27.05 
1962 05 32.50  23.20  27.85 
1962 06 33.90  23.50  28.70 
1962 07 31.90  24.00  27.95 
1962 08 32.59  23.10  27.84 
1962 09 31.20  23.40  27.30 
1962 10 31.60  22.70  27.15 
1962 11 29.40  22.00  25.70 
1962 12 29.20  20.50  24.85 
1963 01 26.20  19.50  22.85 
1963 02 25.70  19.60  22.65 
1963 03 28.40  20.50  24.45 
1963 04 30.30  21.50  25.90 
1963 05 32.50  22.90  27.70 
1963 06 32.20  23.60  27.90 
1963 07 32.30  23.60  27.95 
1963 08 31.20  23.40  27.30 
1963 09 32.09  24.10  28.09 
1963 10 32.00  22.40  27.20 
1963 11 30.30  22.10  26.20 
1963 12 29.40  21.40  25.40 
1964 01 29.20  21.10  25.15 
1964 02 28.30  20.90  24.59 
1964 03 29.30  21.50  25.40 
1964 04 30.70  22.50  26.60 
1964 05 32.50  23.50  28.00 
1964 06 33.09  23.70  28.40 
1964 07 32.90  23.60  28.25 
1964 08 32.09  24.00  28.05 
1964 09 32.30  23.30  27.80 
1964 10 31.40  22.60  27.00 
1964 11 28.90  22.10  25.50 
1964 12 29.40  20.90  25.15 
1965 01 28.10  19.50  23.80 
1965 02 29.10  20.40  24.75 
1965 03 29.50  21.00  25.25 
1965 04 32.00  22.00  27.00 
1965 05 32.70  23.00  27.85 
1965 06 33.50  23.30  28.40 
1965 07 32.20  22.60  27.40 
1965 08 32.40  23.30  27.85 
1965 09 32.70  23.10  27.90 
1965 10 31.70  22.20  26.95 
1965 11 31.00  22.70  26.85 
1965 12 29.80  21.30  25.55 
1966 01 28.90  20.40  24.65 
1966 02 29.60  20.70  25.15 
1966 03 30.60  21.40  26.00 
1966 04 32.70  22.30  27.50 
1966 05 31.40  23.20  27.30 
1966 06 33.59  23.80  28.70 
1966 07 32.30  23.40  27.84 
1966 08 33.59  24.10  28.84 
1966 09 31.80  23.90  27.84 
1966 10 31.80  23.00  27.40 
1966 11 29.90  22.90  26.40 
1966 12 29.10  22.30  25.70 
1967 01 28.90  20.90  24.90 
1967 02 28.50  20.40  24.45 
1967 03 29.50  21.40  25.45 
1967 04 31.00  22.60  26.80 
1967 05 34.09  23.90  29.00 
1967 06 33.09  23.60  28.34 
1967 07 33.80  23.90  28.84 
1967 08 32.09  24.10  28.09 
1967 09 33.30  23.50  28.40 
1967 10 31.80  22.20  27.00 
1967 11 30.00  21.80  25.90 
1967 12 29.20  20.00  24.60 
1968 01 28.70  20.00  24.35 
1968 02 29.40  19.40  24.40 
1968 03 30.20  21.10  25.65 
1968 04 31.00  21.70  26.35 
1968 05 33.70  22.90  28.30 
1968 06 34.09  23.40  28.75 
1968 07 34.00  24.10  29.05 
1968 08 32.59  24.10  28.34 
1968 09 32.59  23.70  28.15 
1968 10 31.80  21.80  26.80 
1968 11 30.90  20.60  25.75 
1968 12 29.50  20.60  25.05 
1969 01 29.30  20.29  24.80 
1969 02 30.70  19.79  25.25 
1969 03 31.30  21.50  26.40 
1969 04 31.90  22.50  27.20 
1969 05 34.20  24.30  29.25 
1969 06 34.30  24.80  29.55 
1969 07 32.59  23.50  28.05 
1969 08 32.70  23.20  27.95 
1969 09 33.09  24.10  28.59 
1969 10 32.09  22.60  27.34 
1969 11 31.00  21.80  26.40 
1969 12 29.00  21.70  25.35 
1970 01 30.00  20.70  25.35 
1970 02 29.50  20.50  25.00 
1970 03 31.10  22.00  26.55 
1970 04 32.00  23.20  27.60 
1970 05 33.80  23.60  28.70 
1970 06 33.20  23.70  28.45 
1970 07 34.40  23.90  29.15 
1970 08 33.59  24.40  29.00 
1970 09 31.60  23.20  27.40 
1970 10 30.50  21.90  26.20 
1970 11 29.30  22.60  25.95 
1970 12 30.30  22.00  26.15 
1971 01 28.50  20.10  24.30 
1971 02 28.70  20.80  24.75 
1971 03 29.70  20.70  25.20 
1971 04 31.90  20.70  26.30 
1971 05 32.09  21.90  27.00 
1971 06 32.09  23.20  27.65 
1971 07 32.40  23.10  27.75 
1971 08 33.90  23.30  28.60 
1971 09 33.30  23.00  28.15 
1971 10 30.40  23.40  26.90 
1971 11 29.20  20.90  25.05 
1971 12 29.20  21.30  25.25 
1972 01 28.90  20.10  24.50 
1972 02 30.80  20.40  25.59 
1972 03 29.90  20.50  25.20 
1972 04 31.50  22.30  26.90 
1972 05 33.50  23.00  28.25 
1972 06 34.00  23.70  28.85 
1972 07 31.00  23.70  27.35 
1972 08 32.00  23.30  27.65 
1972 09 33.30  23.40  28.34 
1972 10 32.80  23.00  27.90 
1972 11 30.60  22.90  26.75 
1972 12 29.90  21.80  25.84 
1973 01 29.60  20.70  25.15 
1973 02 29.60  20.70  25.15 
1973 03 30.70  20.90  25.80 
1973 04 32.30  22.40  27.34 
1973 05 34.40  23.30  28.85 
1973 06 35.40  23.70  29.55 
1973 07 33.09  24.00  28.55 
1973 08 33.20  23.60  28.40 
1973 09 31.80  23.20  27.50 
1973 10 31.90  23.10  27.50 
1973 11 30.60  23.10  26.85 
1973 12 28.90  21.20  25.05 
1974 01 29.00  19.90  24.45 
1974 02 30.00  21.50  25.75 
1974 03 29.40  21.10  25.25 
1974 04 32.20  22.90  27.55 
1974 05 32.50  23.40  27.95 
1974 06 33.20  24.20  28.70 
1974 07 33.50  24.00  28.75 
1974 08 31.90  24.70  28.30 
1974 09 33.00  23.80  28.40 
1974 10 30.90  23.50  27.20 
1974 11 29.60  22.90  26.25 
1974 12 28.30  22.50  25.40 
1975 01 27.80  21.40  24.59 
1975 02 28.60  20.80  24.70 
1975 03 29.80  21.90  25.84 
1975 04 30.70  23.20  26.95 
1975 05 33.00  23.80  28.40 
1975 06 32.80  22.30  27.55 
1975 07 33.40  23.60  28.50 
1975 08 33.30  24.70  29.00 
1975 10 31.90  23.30  27.59 
1975 11 30.80  21.80  26.30 
1975 12 28.60  21.80  25.20 
