| 1949 9 19 | 1949 9 | 1950 7 21 | | 4 1951 | | | △1950 | | | 30 | | 12 | | | △ 1951 | | | | △ 1952 10 | 6 | | △1957 | | | △1960 8 | | | | △1960 | | | | △1961 | 200 24 | △1963 4 21 | | | | | 1966 9 1968 | 1969 1970 | 9 | △ 1970 10 3 | 1975 | 1980 300 | | △ 1981 1999 | | | | | | | | |