1944 1949 1949 1949 1950 1950 1951 1951 1952 1952 1952 1953 1953 1953 1953 1954 1955 1955 1955 1956 1957 1957 1957 1957 1958 1958 1959 1959 1960 1960 1961 1961 1962 1962 1964 1965 1965 1965 1966 1967 1968 1969 1969 1969 1969 1972 1973 1973 1975 1975 1976 1977 1977 1978 1978 1982 1982 1984 1988—1989 