1974 3 | | | 2200 | | | 1 2 3 | | 8000 | | | | | | | | 20 | | | | | | 1972 1974 1 2 3 | | 1 | 2100 | | | | 1975 1976 | 2000 | | | | | | | | 10 6 | |