| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 2297 | 千吨 | 2026-9 |
| 1989/1990 | 2115 | 千吨 | 2026-9 |
| 1988/1989 | 2307 | 千吨 | 2026-9 |
| 1987/1988 | 2300 | 千吨 | 2026-9 |
| 1986/1987 | 1803 | 千吨 | 2026-9 |
| 1985/1986 | 1808 | 千吨 | 2026-9 |
| 1984/1985 | 1400 | 千吨 | 2026-9 |
| 1983/1984 | 1188 | 千吨 | 2026-9 |
| 1982/1983 | 1322 | 千吨 | 2026-9 |
| 1981/1982 | 813 | 千吨 | 2026-9 |
| 1980/1981 | 948 | 千吨 | 2026-9 |
| 1979/1980 | 763 | 千吨 | 2026-9 |
| 1978/1979 | 535 | 千吨 | 2026-9 |
| 1977/1978 | 388 | 千吨 | 2026-9 |
| 1976/1977 | 455 | 千吨 | 2026-9 |
| 1975/1976 | 306 | 千吨 | 2026-9 |
| 1974/1975 | 372 | 千吨 | 2026-9 |
| 1973/1974 | 430 | 千吨 | 2026-9 |
| 1972/1973 | 247 | 千吨 | 2026-9 |
| 1971/1972 | 255 | 千吨 | 2026-9 |
| 1970/1971 | 261 | 千吨 | 2026-9 |
| 1969/1970 | 193 | 千吨 | 2026-9 |
| 1968/1969 | 278 | 千吨 | 2026-9 |
| 1967/1968 | 219 | 千吨 | 2026-9 |
| 1966/1967 | 133 | 千吨 | 2026-9 |
| 1965/1966 | 180 | 千吨 | 2026-9 |
| 1964/1965 | 168 | 千吨 | 2026-9 |