| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1990/1991 | 343.505 | 千吨 | 2026-9 |
| 1989/1990 | 322.161 | 千吨 | 2026-9 |
| 1988/1989 | 394.197 | 千吨 | 2026-9 |
| 1987/1988 | 310.822 | 千吨 | 2026-9 |
| 1986/1987 | 271.469 | 千吨 | 2026-9 |
| 1985/1986 | 308.821 | 千吨 | 2026-9 |
| 1984/1985 | 330.832 | 千吨 | 2026-9 |
| 1983/1984 | 248.791 | 千吨 | 2026-9 |
| 1982/1983 | 246.123 | 千吨 | 2026-9 |
| 1981/1982 | 167.417 | 千吨 | 2026-9 |
| 1980/1981 | 150.075 | 千吨 | 2026-9 |
| 1979/1980 | 150.742 | 千吨 | 2026-9 |
| 1978/1979 | 102.051 | 千吨 | 2026-9 |
| 1977/1978 | 92.713 | 千吨 | 2026-9 |
| 1976/1977 | 71.369 | 千吨 | 2026-9 |
| 1975/1976 | 88.711 | 千吨 | 2026-9 |
| 1974/1975 | 74.037 | 千吨 | 2026-9 |
| 1973/1974 | 70.702 | 千吨 | 2026-9 |
| 1972/1973 | 60.03 | 千吨 | 2026-9 |