| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 2790 | 千吨 | 2026-9 |
| 1989/1990 | 2668 | 千吨 | 2026-9 |
| 1988/1989 | 2475 | 千吨 | 2026-9 |
| 1987/1988 | 3020 | 千吨 | 2026-9 |
| 1986/1987 | 3279 | 千吨 | 2026-9 |
| 1985/1986 | 2991 | 千吨 | 2026-9 |
| 1984/1985 | 2775 | 千吨 | 2026-9 |
| 1983/1984 | 2452 | 千吨 | 2026-9 |
| 1982/1983 | 3490 | 千吨 | 2026-9 |
| 1981/1982 | 3583 | 千吨 | 2026-9 |
| 1980/1981 | 3228 | 千吨 | 2026-9 |
| 1979/1980 | 3923 | 千吨 | 2026-9 |
| 1978/1979 | 3670 | 千吨 | 2026-9 |
| 1977/1978 | 3595 | 千吨 | 2026-9 |
| 1976/1977 | 3371 | 千吨 | 2026-9 |
| 1975/1976 | 3428 | 千吨 | 2026-9 |
| 1974/1975 | 3450 | 千吨 | 2026-9 |
| 1973/1974 | 3703 | 千吨 | 2026-9 |
| 1972/1973 | 2792 | 千吨 | 2026-9 |
| 1971/1972 | 2217 | 千吨 | 2026-9 |
| 1970/1971 | 2085 | 千吨 | 2026-9 |
| 1969/1970 | 2063 | 千吨 | 2026-9 |
| 1968/1969 | 1398 | 千吨 | 2026-9 |
| 1967/1968 | 1445 | 千吨 | 2026-9 |
| 1966/1967 | 1601 | 千吨 | 2026-9 |
| 1965/1966 | 1690 | 千吨 | 2026-9 |
| 1964/1965 | 1290 | 千吨 | 2026-9 |