| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 1394 | 千吨 | 2026-9 |
| 1989/1990 | 868 | 千吨 | 2026-9 |
| 1988/1989 | 787 | 千吨 | 2026-9 |
| 1987/1988 | 1002 | 千吨 | 2026-9 |
| 1986/1987 | 610 | 千吨 | 2026-9 |
| 1985/1986 | 776 | 千吨 | 2026-9 |
| 1984/1985 | 905 | 千吨 | 2026-9 |
| 1983/1984 | 747 | 千吨 | 2026-9 |
| 1982/1983 | 537 | 千吨 | 2026-9 |
| 1981/1982 | 520 | 千吨 | 2026-9 |
| 1980/1981 | 483 | 千吨 | 2026-9 |
| 1979/1980 | 488 | 千吨 | 2026-9 |
| 1978/1979 | 480 | 千吨 | 2026-9 |
| 1977/1978 | 405 | 千吨 | 2026-9 |
| 1976/1977 | 433 | 千吨 | 2026-9 |
| 1975/1976 | 313 | 千吨 | 2026-9 |
| 1974/1975 | 189 | 千吨 | 2026-9 |
| 1973/1974 | 264 | 千吨 | 2026-9 |
| 1972/1973 | 190 | 千吨 | 2026-9 |
| 1971/1972 | 208 | 千吨 | 2026-9 |
| 1970/1971 | 170 | 千吨 | 2026-9 |
| 1969/1970 | 141 | 千吨 | 2026-9 |
| 1968/1969 | 59 | 千吨 | 2026-9 |