| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1986/1987 | 3700 | 千吨 | 2026-9 |
| 1985/1986 | 2400 | 千吨 | 2026-9 |
| 1984/1985 | 4400 | 千吨 | 2026-9 |
| 1983/1984 | 900 | 千吨 | 2026-9 |
| 1982/1983 | 2100 | 千吨 | 2026-9 |
| 1981/1982 | 4300 | 千吨 | 2026-9 |
| 1980/1981 | 3100 | 千吨 | 2026-9 |
| 1979/1980 | 2700 | 千吨 | 2026-9 |
| 1978/1979 | 319 | 千吨 | 2026-9 |
| 1977/1978 | 808 | 千吨 | 2026-9 |
| 1976/1977 | 700 | 千吨 | 2026-9 |
| 1975/1976 | 2850 | 千吨 | 2026-9 |
| 1974/1975 | 500 | 千吨 | 2026-9 |
| 1973/1974 | 690 | 千吨 | 2026-9 |
| 1972/1973 | 1976 | 千吨 | 2026-9 |
| 1971/1972 | 1589 | 千吨 | 2026-9 |
| 1970/1971 | 0 | 千吨 | 2026-9 |
| 1969/1970 | 0 | 千吨 | 2026-9 |
| 1968/1969 | 98 | 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 | 0 | 千吨 | 2026-9 |
| 1963/1964 | 0 | 千吨 | 2026-9 |
| 1962/1963 | 0 | 千吨 | 2026-9 |
| 1961/1962 | 0 | 千吨 | 2026-9 |
| 1960/1961 | 20 | 千吨 | 2026-9 |