| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 363 | 千吨 | 2026-9 |
| 1989/1990 | 368 | 千吨 | 2026-9 |
| 1988/1989 | 244 | 千吨 | 2026-9 |
| 1987/1988 | 490 | 千吨 | 2026-9 |
| 1986/1987 | 607 | 千吨 | 2026-9 |
| 1985/1986 | 572 | 千吨 | 2026-9 |
| 1984/1985 | 576 | 千吨 | 2026-9 |
| 1983/1984 | 664 | 千吨 | 2026-9 |
| 1982/1983 | 941 | 千吨 | 2026-9 |
| 1981/1982 | 878 | 千吨 | 2026-9 |
| 1980/1981 | 509 | 千吨 | 2026-9 |
| 1979/1980 | 924 | 千吨 | 2026-9 |
| 1978/1979 | 869 | 千吨 | 2026-9 |
| 1977/1978 | 782 | 千吨 | 2026-9 |
| 1976/1977 | 549 | 千吨 | 2026-9 |
| 1975/1976 | 509 | 千吨 | 2026-9 |
| 1974/1975 | 416 | 千吨 | 2026-9 |
| 1973/1974 | 564 | 千吨 | 2026-9 |
| 1972/1973 | 508 | 千吨 | 2026-9 |
| 1971/1972 | 458 | 千吨 | 2026-9 |
| 1970/1971 | 479 | 千吨 | 2026-9 |
| 1969/1970 | 442 | 千吨 | 2026-9 |
| 1968/1969 | 57 | 千吨 | 2026-9 |
| 1967/1968 | 50 | 千吨 | 2026-9 |
| 1966/1967 | 136 | 千吨 | 2026-9 |
| 1965/1966 | 118 | 千吨 | 2026-9 |
| 1964/1965 | 109 | 千吨 | 2026-9 |