| 20 | | 4000~6500 | | 77% | 1. 20 | | | | 5 | 1972 | 200 350 | | 5 | 1976 | | FD1.5~100 | | | 2. | | 1978 | | | 97 1980 | | | | | | | | 139 233 | 3. | | 1983 | | | 1984 | 9 | 14 1989 | 58 | | 95% | | | | | | | | | | 1 | 12~20 | 1989 | | 5 100 | | |