| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 180 | 千吨 | 2026-9 |
| 1989/1990 | 280 | 千吨 | 2026-9 |
| 1988/1989 | 255 | 千吨 | 2026-9 |
| 1987/1988 | 423 | 千吨 | 2026-9 |
| 1986/1987 | 594 | 千吨 | 2026-9 |
| 1985/1986 | 536 | 千吨 | 2026-9 |
| 1984/1985 | 586 | 千吨 | 2026-9 |
| 1983/1984 | 639 | 千吨 | 2026-9 |
| 1982/1983 | 932 | 千吨 | 2026-9 |
| 1981/1982 | 823 | 千吨 | 2026-9 |
| 1980/1981 | 551 | 千吨 | 2026-9 |
| 1979/1980 | 921 | 千吨 | 2026-9 |
| 1978/1979 | 889 | 千吨 | 2026-9 |
| 1977/1978 | 715 | 千吨 | 2026-9 |
| 1976/1977 | 562 | 千吨 | 2026-9 |
| 1975/1976 | 524 | 千吨 | 2026-9 |
| 1974/1975 | 430 | 千吨 | 2026-9 |
| 1973/1974 | 569 | 千吨 | 2026-9 |
| 1972/1973 | 509 | 千吨 | 2026-9 |
| 1971/1972 | 484 | 千吨 | 2026-9 |
| 1970/1971 | 482 | 千吨 | 2026-9 |
| 1969/1970 | 425 | 千吨 | 2026-9 |
| 1968/1969 | 46 | 千吨 | 2026-9 |
| 1967/1968 | 50 | 千吨 | 2026-9 |
| 1966/1967 | 129 | 千吨 | 2026-9 |
| 1965/1966 | 118 | 千吨 | 2026-9 |
| 1964/1965 | 109 | 千吨 | 2026-9 |