| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1990/1991 | 1.779 | 千吨 | 2026-9 |
| 1989/1990 | 1.779 | 千吨 | 2026-9 |
| 1988/1989 | 1.779 | 千吨 | 2026-9 |
| 1987/1988 | 2.846 | 千吨 | 2026-9 |
| 1986/1987 | 0.356 | 千吨 | 2026-9 |
| 1985/1986 | 1.779 | 千吨 | 2026-9 |
| 1984/1985 | 1.779 | 千吨 | 2026-9 |
| 1983/1984 | 1.067 | 千吨 | 2026-9 |
| 1982/1983 | 0.711 | 千吨 | 2026-9 |
| 1981/1982 | 1.067 | 千吨 | 2026-9 |
| 1980/1981 | 1.423 | 千吨 | 2026-9 |
| 1979/1980 | 1.067 | 千吨 | 2026-9 |
| 1978/1979 | 0.711 | 千吨 | 2026-9 |
| 1975/1976 | 0.711 | 千吨 | 2026-9 |
| 1974/1975 | 1.067 | 千吨 | 2026-9 |
| 1973/1974 | 5.691 | 千吨 | 2026-9 |
| 1972/1973 | 0.711 | 千吨 | 2026-9 |
| 1971/1972 | 1.423 | 千吨 | 2026-9 |
| 1969/1970 | 1.067 | 千吨 | 2026-9 |
| 1968/1969 | 0.711 | 千吨 | 2026-9 |