| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 3008 | 千吨 | 2026-9 |
| 1989/1990 | 2851 | 千吨 | 2026-9 |
| 1988/1989 | 2609 | 千吨 | 2026-9 |
| 1987/1988 | 2598 | 千吨 | 2026-9 |
| 1986/1987 | 2791 | 千吨 | 2026-9 |
| 1985/1986 | 2674 | 千吨 | 2026-9 |
| 1984/1985 | 2314 | 千吨 | 2026-9 |
| 1983/1984 | 1938 | 千吨 | 2026-9 |
| 1982/1983 | 2370 | 千吨 | 2026-9 |
| 1981/1982 | 2588 | 千吨 | 2026-9 |
| 1980/1981 | 1821 | 千吨 | 2026-9 |
| 1979/1980 | 2712 | 千吨 | 2026-9 |
| 1978/1979 | 2579 | 千吨 | 2026-9 |
| 1977/1978 | 2002 | 千吨 | 2026-9 |
| 1976/1977 | 1654 | 千吨 | 2026-9 |
| 1975/1976 | 1712 | 千吨 | 2026-9 |
| 1974/1975 | 1393 | 千吨 | 2026-9 |
| 1973/1974 | 1521 | 千吨 | 2026-9 |
| 1972/1973 | 1166 | 千吨 | 2026-9 |
| 1971/1972 | 1122 | 千吨 | 2026-9 |
| 1970/1971 | 1004 | 千吨 | 2026-9 |
| 1969/1970 | 931 | 千吨 | 2026-9 |
| 1968/1969 | 703 | 千吨 | 2026-9 |
| 1967/1968 | 688 | 千吨 | 2026-9 |
| 1966/1967 | 637 | 千吨 | 2026-9 |
| 1965/1966 | 541 | 千吨 | 2026-9 |
| 1964/1965 | 461 | 千吨 | 2026-9 |