| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 1493 | 千吨 | 2026-9 |
| 1989/1990 | 1896 | 千吨 | 2026-9 |
| 1988/1989 | 1323 | 千吨 | 2026-9 |
| 1987/1988 | 1659 | 千吨 | 2026-9 |
| 1986/1987 | 1865 | 千吨 | 2026-9 |
| 1985/1986 | 1684 | 千吨 | 2026-9 |
| 1984/1985 | 1532 | 千吨 | 2026-9 |
| 1983/1984 | 2109 | 千吨 | 2026-9 |
| 1982/1983 | 2482 | 千吨 | 2026-9 |
| 1981/1982 | 2528 | 千吨 | 2026-9 |
| 1980/1981 | 2251 | 千吨 | 2026-9 |
| 1979/1980 | 2436 | 千吨 | 2026-9 |
| 1978/1979 | 1742 | 千吨 | 2026-9 |
| 1977/1978 | 1676 | 千吨 | 2026-9 |
| 1976/1977 | 1455 | 千吨 | 2026-9 |
| 1975/1976 | 1538 | 千吨 | 2026-9 |
| 1974/1975 | 1400 | 千吨 | 2026-9 |
| 1973/1974 | 1262 | 千吨 | 2026-9 |
| 1972/1973 | 657 | 千吨 | 2026-9 |
| 1971/1972 | 1128 | 千吨 | 2026-9 |
| 1970/1971 | 1037 | 千吨 | 2026-9 |
| 1969/1970 | 968 | 千吨 | 2026-9 |
| 1968/1969 | 810 | 千吨 | 2026-9 |
| 1967/1968 | 729 | 千吨 | 2026-9 |
| 1966/1967 | 641 | 千吨 | 2026-9 |
| 1965/1966 | 503 | 千吨 | 2026-9 |
| 1964/1965 | 268 | 千吨 | 2026-9 |