| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 0 | 千吨 | 2026-9 |
| 1990/1991 | 11.24 | 千吨 | 2026-9 |
| 1989/1990 | 13.488 | 千吨 | 2026-9 |
| 1988/1989 | 14.612 | 千吨 | 2026-9 |
| 1987/1988 | 17.984 | 千吨 | 2026-9 |
| 1986/1987 | 13.488 | 千吨 | 2026-9 |
| 1985/1986 | 13.488 | 千吨 | 2026-9 |
| 1984/1985 | 17.984 | 千吨 | 2026-9 |
| 1983/1984 | 77.556 | 千吨 | 2026-9 |
| 1982/1983 | 161.856 | 千吨 | 2026-9 |
| 1981/1982 | 219.18 | 千吨 | 2026-9 |
| 1980/1981 | 175.344 | 千吨 | 2026-9 |
| 1979/1980 | 166.352 | 千吨 | 2026-9 |
| 1978/1979 | 110.152 | 千吨 | 2026-9 |
| 1977/1978 | 49.456 | 千吨 | 2026-9 |
| 1976/1977 | 132.632 | 千吨 | 2026-9 |
| 1975/1976 | 114.648 | 千吨 | 2026-9 |
| 1974/1975 | 89.92 | 千吨 | 2026-9 |
| 1973/1974 | 69.688 | 千吨 | 2026-9 |
| 1972/1973 | 142.748 | 千吨 | 2026-9 |