| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 2536 | 千吨 | 2026-9 |
| 1989/1990 | 2418 | 千吨 | 2026-9 |
| 1988/1989 | 2543 | 千吨 | 2026-9 |
| 1987/1988 | 2640 | 千吨 | 2026-9 |
| 1986/1987 | 2188 | 千吨 | 2026-9 |
| 1985/1986 | 1978 | 千吨 | 2026-9 |
| 1984/1985 | 1538 | 千吨 | 2026-9 |
| 1983/1984 | 1276 | 千吨 | 2026-9 |
| 1982/1983 | 1395 | 千吨 | 2026-9 |
| 1981/1982 | 873 | 千吨 | 2026-9 |
| 1980/1981 | 1018 | 千吨 | 2026-9 |
| 1979/1980 | 842 | 千吨 | 2026-9 |
| 1978/1979 | 622 | 千吨 | 2026-9 |
| 1977/1978 | 456 | 千吨 | 2026-9 |
| 1976/1977 | 508 | 千吨 | 2026-9 |
| 1975/1976 | 361 | 千吨 | 2026-9 |
| 1974/1975 | 477 | 千吨 | 2026-9 |
| 1973/1974 | 473 | 千吨 | 2026-9 |
| 1972/1973 | 350 | 千吨 | 2026-9 |
| 1971/1972 | 361 | 千吨 | 2026-9 |
| 1970/1971 | 394 | 千吨 | 2026-9 |
| 1969/1970 | 241 | 千吨 | 2026-9 |
| 1968/1969 | 293 | 千吨 | 2026-9 |
| 1967/1968 | 244 | 千吨 | 2026-9 |
| 1966/1967 | 141 | 千吨 | 2026-9 |
| 1965/1966 | 215 | 千吨 | 2026-9 |
| 1964/1965 | 187 | 千吨 | 2026-9 |