| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1991/1992 | 5 | 千吨 | 2026-9 |
| 1990/1991 | 36 | 千吨 | 2026-9 |
| 1989/1990 | 28 | 千吨 | 2026-9 |
| 1988/1989 | 265 | 千吨 | 2026-9 |
| 1987/1988 | 37 | 千吨 | 2026-9 |
| 1986/1987 | 74 | 千吨 | 2026-9 |
| 1985/1986 | 150 | 千吨 | 2026-9 |
| 1984/1985 | 100 | 千吨 | 2026-9 |
| 1983/1984 | 219 | 千吨 | 2026-9 |
| 1982/1983 | 200 | 千吨 | 2026-9 |
| 1981/1982 | 450 | 千吨 | 2026-9 |
| 1980/1981 | 200 | 千吨 | 2026-9 |
| 1979/1980 | 750 | 千吨 | 2026-9 |
| 1978/1979 | 350 | 千吨 | 2026-9 |
| 1977/1978 | 400 | 千吨 | 2026-9 |
| 1976/1977 | 400 | 千吨 | 2026-9 |
| 1975/1976 | 700 | 千吨 | 2026-9 |
| 1974/1975 | 500 | 千吨 | 2026-9 |
| 1973/1974 | 700 | 千吨 | 2026-9 |
| 1972/1973 | 945 | 千吨 | 2026-9 |
| 1971/1972 | 1353 | 千吨 | 2026-9 |
| 1970/1971 | 1338 | 千吨 | 2026-9 |
| 1969/1970 | 1773 | 千吨 | 2026-9 |
| 1968/1969 | 1047 | 千吨 | 2026-9 |
| 1967/1968 | 1484 | 千吨 | 2026-9 |
| 1966/1967 | 1290 | 千吨 | 2026-9 |
| 1965/1966 | 1551 | 千吨 | 2026-9 |
| 1964/1965 | 1611 | 千吨 | 2026-9 |
| 1963/1964 | 1115 | 千吨 | 2026-9 |
| 1962/1963 | 1285 | 千吨 | 2026-9 |
| 1961/1962 | 889 | 千吨 | 2026-9 |
| 1960/1961 | 1381 | 千吨 | 2026-9 |