| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1980/1981 | 159 | 千吨 | 2026-9 |
| 1979/1980 | 0 | 千吨 | 2026-9 |
| 1978/1979 | 0 | 千吨 | 2026-9 |
| 1977/1978 | 0 | 千吨 | 2026-9 |
| 1976/1977 | 0 | 千吨 | 2026-9 |
| 1975/1976 | 65 | 千吨 | 2026-9 |
| 1974/1975 | 83 | 千吨 | 2026-9 |
| 1973/1974 | 99 | 千吨 | 2026-9 |
| 1972/1973 | 71 | 千吨 | 2026-9 |
| 1971/1972 | 92 | 千吨 | 2026-9 |
| 1970/1971 | 22 | 千吨 | 2026-9 |
| 1969/1970 | 38 | 千吨 | 2026-9 |
| 1968/1969 | 69 | 千吨 | 2026-9 |
| 1967/1968 | 73 | 千吨 | 2026-9 |
| 1966/1967 | 63 | 千吨 | 2026-9 |
| 1965/1966 | 49 | 千吨 | 2026-9 |
| 1964/1965 | 36 | 千吨 | 2026-9 |
| 1963/1964 | 26 | 千吨 | 2026-9 |
| 1962/1963 | 85 | 千吨 | 2026-9 |
| 1961/1962 | 117 | 千吨 | 2026-9 |
| 1960/1961 | 122 | 千吨 | 2026-9 |