| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 479 | 千吨 | 2026-9 |
| 1989/1990 | 460 | 千吨 | 2026-9 |
| 1988/1989 | 425 | 千吨 | 2026-9 |
| 1987/1988 | 523 | 千吨 | 2026-9 |
| 1986/1987 | 562 | 千吨 | 2026-9 |
| 1985/1986 | 518 | 千吨 | 2026-9 |
| 1984/1985 | 482 | 千吨 | 2026-9 |
| 1983/1984 | 427 | 千吨 | 2026-9 |
| 1982/1983 | 586 | 千吨 | 2026-9 |
| 1981/1982 | 622 | 千吨 | 2026-9 |
| 1980/1981 | 568 | 千吨 | 2026-9 |
| 1979/1980 | 688 | 千吨 | 2026-9 |
| 1978/1979 | 649 | 千吨 | 2026-9 |
| 1977/1978 | 640 | 千吨 | 2026-9 |
| 1976/1977 | 614 | 千吨 | 2026-9 |
| 1975/1976 | 617 | 千吨 | 2026-9 |
| 1974/1975 | 620 | 千吨 | 2026-9 |
| 1973/1974 | 662 | 千吨 | 2026-9 |
| 1972/1973 | 499 | 千吨 | 2026-9 |
| 1971/1972 | 396 | 千吨 | 2026-9 |
| 1970/1971 | 373 | 千吨 | 2026-9 |
| 1969/1970 | 369 | 千吨 | 2026-9 |
| 1968/1969 | 250 | 千吨 | 2026-9 |
| 1967/1968 | 259 | 千吨 | 2026-9 |
| 1966/1967 | 286 | 千吨 | 2026-9 |
| 1965/1966 | 302 | 千吨 | 2026-9 |
| 1964/1965 | 231 | 千吨 | 2026-9 |