| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1986/1987 | 1475 | 千吨 | 2026-9 |
| 1985/1986 | 2243 | 千吨 | 2026-9 |
| 1984/1985 | 850 | 千吨 | 2026-9 |
| 1983/1984 | 950 | 千吨 | 2026-9 |
| 1982/1983 | 1055 | 千吨 | 2026-9 |
| 1981/1982 | 1477 | 千吨 | 2026-9 |
| 1980/1981 | 1394 | 千吨 | 2026-9 |
| 1979/1980 | 1521 | 千吨 | 2026-9 |
| 1978/1979 | 1817 | 千吨 | 2026-9 |
| 1977/1978 | 906 | 千吨 | 2026-9 |
| 1976/1977 | 1384 | 千吨 | 2026-9 |
| 1975/1976 | 1769 | 千吨 | 2026-9 |
| 1974/1975 | 349 | 千吨 | 2026-9 |
| 1973/1974 | 0 | 千吨 | 2026-9 |
| 1972/1973 | 705 | 千吨 | 2026-9 |
| 1971/1972 | 297 | 千吨 | 2026-9 |
| 1970/1971 | 0 | 千吨 | 2026-9 |
| 1969/1970 | 0 | 千吨 | 2026-9 |
| 1968/1969 | 0 | 千吨 | 2026-9 |
| 1967/1968 | 0 | 千吨 | 2026-9 |
| 1966/1967 | 0 | 千吨 | 2026-9 |
| 1965/1966 | 0 | 千吨 | 2026-9 |
| 1964/1965 | 93 | 千吨 | 2026-9 |