| ● | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1973 | | 1964 32 1973 | | | | | | | | 0.6 ~ 0.65 | | | | | | | | | | | | | | 12 16 | | | | | | | | | | | | | | | | | | | | | | | | 5 ~ 9 | | | 5 ~ 7 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1958 | 1966 | | | | | | | | | | | | | | | 1980 | 2000 | | | | | | | | 1960 | | | | 1981 | | | | | | | | 1958 1982 | 1995 | 2000 | | | | | | 1950 1959 | | 12 | 1963 | | | 1979 | 1981 | | 1994 | 120 20 | 70 | |