| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 639 | 千吨 | 2026-9 |
| 1989/1990 | 551 | 千吨 | 2026-9 |
| 1988/1989 | 376 | 千吨 | 2026-9 |
| 1987/1988 | 691 | 千吨 | 2026-9 |
| 1986/1987 | 493 | 千吨 | 2026-9 |
| 1985/1986 | 397 | 千吨 | 2026-9 |
| 1984/1985 | 689 | 千吨 | 2026-9 |
| 1983/1984 | 258 | 千吨 | 2026-9 |
| 1982/1983 | 666 | 千吨 | 2026-9 |
| 1981/1982 | 300 | 千吨 | 2026-9 |
| 1980/1981 | 479 | 千吨 | 2026-9 |
| 1979/1980 | 433 | 千吨 | 2026-9 |
| 1978/1979 | 500 | 千吨 | 2026-9 |
| 1977/1978 | 361 | 千吨 | 2026-9 |
| 1976/1977 | 390 | 千吨 | 2026-9 |
| 1975/1976 | 455 | 千吨 | 2026-9 |
| 1974/1975 | 333 | 千吨 | 2026-9 |
| 1973/1974 | 447 | 千吨 | 2026-9 |
| 1972/1973 | 440 | 千吨 | 2026-9 |
| 1971/1972 | 341 | 千吨 | 2026-9 |
| 1970/1971 | 475 | 千吨 | 2026-9 |
| 1969/1970 | 358 | 千吨 | 2026-9 |
| 1968/1969 | 480 | 千吨 | 2026-9 |
| 1967/1968 | 259 | 千吨 | 2026-9 |
| 1966/1967 | 437 | 千吨 | 2026-9 |
| 1965/1966 | 324 | 千吨 | 2026-9 |
| 1964/1965 | 110 | 千吨 | 2026-9 |