| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 724 | 千吨 | 2026-9 |
| 1989/1990 | 722 | 千吨 | 2026-9 |
| 1988/1989 | 749 | 千吨 | 2026-9 |
| 1987/1988 | 665 | 千吨 | 2026-9 |
| 1986/1987 | 520 | 千吨 | 2026-9 |
| 1985/1986 | 454 | 千吨 | 2026-9 |
| 1984/1985 | 512 | 千吨 | 2026-9 |
| 1983/1984 | 382 | 千吨 | 2026-9 |
| 1982/1983 | 336 | 千吨 | 2026-9 |
| 1981/1982 | 387 | 千吨 | 2026-9 |
| 1980/1981 | 371 | 千吨 | 2026-9 |
| 1979/1980 | 310 | 千吨 | 2026-9 |
| 1978/1979 | 316 | 千吨 | 2026-9 |
| 1977/1978 | 268 | 千吨 | 2026-9 |
| 1976/1977 | 267 | 千吨 | 2026-9 |
| 1975/1976 | 225 | 千吨 | 2026-9 |
| 1974/1975 | 268 | 千吨 | 2026-9 |
| 1973/1974 | 307 | 千吨 | 2026-9 |
| 1972/1973 | 317 | 千吨 | 2026-9 |
| 1971/1972 | 357 | 千吨 | 2026-9 |
| 1970/1971 | 260 | 千吨 | 2026-9 |
| 1969/1970 | 165 | 千吨 | 2026-9 |
| 1968/1969 | 185 | 千吨 | 2026-9 |
| 1967/1968 | 170 | 千吨 | 2026-9 |
| 1966/1967 | 123 | 千吨 | 2026-9 |
| 1965/1966 | 119 | 千吨 | 2026-9 |
| 1964/1965 | 74 | 千吨 | 2026-9 |