| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1990/1991 | 442.888 | 千吨 | 2026-9 |
| 1989/1990 | 422.878 | 千吨 | 2026-9 |
| 1988/1989 | 371.519 | 千吨 | 2026-9 |
| 1987/1988 | 314.824 | 千吨 | 2026-9 |
| 1986/1987 | 307.487 | 千吨 | 2026-9 |
| 1985/1986 | 269.468 | 千吨 | 2026-9 |
| 1984/1985 | 194.764 | 千吨 | 2026-9 |
| 1983/1984 | 178.756 | 千吨 | 2026-9 |
| 1982/1983 | 122.728 | 千吨 | 2026-9 |
| 1981/1982 | 86.043 | 千吨 | 2026-9 |
| 1980/1981 | 90.045 | 千吨 | 2026-9 |
| 1979/1980 | 62.031 | 千吨 | 2026-9 |
| 1978/1979 | 58.029 | 千吨 | 2026-9 |
| 1977/1978 | 48.024 | 千吨 | 2026-9 |
| 1976/1977 | 43.355 | 千吨 | 2026-9 |
| 1975/1976 | 35.351 | 千吨 | 2026-9 |
| 1974/1975 | 38.019 | 千吨 | 2026-9 |
| 1973/1974 | 38.686 | 千吨 | 2026-9 |
| 1972/1973 | 62.698 | 千吨 | 2026-9 |