| 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 | 200 | 千吨 | 2026-9 |
| 1984/1985 | 200 | 千吨 | 2026-9 |
| 1983/1984 | 219 | 千吨 | 2026-9 |
| 1982/1983 | 250 | 千吨 | 2026-9 |
| 1981/1982 | 602 | 千吨 | 2026-9 |
| 1980/1981 | 250 | 千吨 | 2026-9 |
| 1979/1980 | 537 | 千吨 | 2026-9 |
| 1978/1979 | 736 | 千吨 | 2026-9 |
| 1977/1978 | 257 | 千吨 | 2026-9 |
| 1976/1977 | 374 | 千吨 | 2026-9 |
| 1975/1976 | 689 | 千吨 | 2026-9 |
| 1974/1975 | 525 | 千吨 | 2026-9 |
| 1973/1974 | 671 | 千吨 | 2026-9 |
| 1972/1973 | 1066 | 千吨 | 2026-9 |
| 1971/1972 | 1193 | 千吨 | 2026-9 |
| 1970/1971 | 1318 | 千吨 | 2026-9 |
| 1969/1970 | 1026 | 千吨 | 2026-9 |
| 1968/1969 | 1246 | 千吨 | 2026-9 |
| 1967/1968 | 1378 | 千吨 | 2026-9 |
| 1966/1967 | 1215 | 千吨 | 2026-9 |
| 1965/1966 | 1044 | 千吨 | 2026-9 |
| 1964/1965 | 934 | 千吨 | 2026-9 |
| 1963/1964 | 1490 | 千吨 | 2026-9 |
| 1962/1963 | 1365 | 千吨 | 2026-9 |
| 1961/1962 | 927 | 千吨 | 2026-9 |
| 1960/1961 | 1127 | 千吨 | 2026-9 |