| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 349 | 千吨 | 2026-9 |
| 1989/1990 | 304 | 千吨 | 2026-9 |
| 1988/1989 | 357 | 千吨 | 2026-9 |
| 1987/1988 | 372 | 千吨 | 2026-9 |
| 1986/1987 | 313 | 千吨 | 2026-9 |
| 1985/1986 | 345 | 千吨 | 2026-9 |
| 1984/1985 | 320 | 千吨 | 2026-9 |
| 1983/1984 | 348 | 千吨 | 2026-9 |
| 1982/1983 | 352 | 千吨 | 2026-9 |
| 1981/1982 | 387 | 千吨 | 2026-9 |
| 1980/1981 | 385 | 千吨 | 2026-9 |
| 1979/1980 | 415 | 千吨 | 2026-9 |
| 1978/1979 | 379 | 千吨 | 2026-9 |
| 1977/1978 | 364 | 千吨 | 2026-9 |
| 1976/1977 | 364 | 千吨 | 2026-9 |
| 1975/1976 | 368 | 千吨 | 2026-9 |
| 1974/1975 | 362 | 千吨 | 2026-9 |
| 1973/1974 | 324 | 千吨 | 2026-9 |
| 1972/1973 | 292 | 千吨 | 2026-9 |
| 1971/1972 | 270 | 千吨 | 2026-9 |
| 1970/1971 | 265 | 千吨 | 2026-9 |
| 1969/1970 | 232 | 千吨 | 2026-9 |
| 1968/1969 | 235 | 千吨 | 2026-9 |
| 1967/1968 | 240 | 千吨 | 2026-9 |
| 1966/1967 | 163 | 千吨 | 2026-9 |
| 1965/1966 | 139 | 千吨 | 2026-9 |
| 1964/1965 | 144 | 千吨 | 2026-9 |