| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 370 | 千吨 | 2026-9 |
| 1989/1990 | 418 | 千吨 | 2026-9 |
| 1988/1989 | 424 | 千吨 | 2026-9 |
| 1987/1988 | 360 | 千吨 | 2026-9 |
| 1986/1987 | 370 | 千吨 | 2026-9 |
| 1985/1986 | 381 | 千吨 | 2026-9 |
| 1984/1985 | 305 | 千吨 | 2026-9 |
| 1983/1984 | 260 | 千吨 | 2026-9 |
| 1982/1983 | 308 | 千吨 | 2026-9 |
| 1981/1982 | 285 | 千吨 | 2026-9 |
| 1980/1981 | 310 | 千吨 | 2026-9 |
| 1979/1980 | 201 | 千吨 | 2026-9 |
| 1978/1979 | 318 | 千吨 | 2026-9 |
| 1977/1978 | 308 | 千吨 | 2026-9 |
| 1976/1977 | 320 | 千吨 | 2026-9 |
| 1975/1976 | 363 | 千吨 | 2026-9 |
| 1974/1975 | 298 | 千吨 | 2026-9 |
| 1973/1974 | 246 | 千吨 | 2026-9 |
| 1972/1973 | 234 | 千吨 | 2026-9 |
| 1971/1972 | 197 | 千吨 | 2026-9 |
| 1970/1971 | 185 | 千吨 | 2026-9 |
| 1969/1970 | 170 | 千吨 | 2026-9 |
| 1968/1969 | 271 | 千吨 | 2026-9 |
| 1967/1968 | 280 | 千吨 | 2026-9 |
| 1966/1967 | 220 | 千吨 | 2026-9 |
| 1965/1966 | 223 | 千吨 | 2026-9 |
| 1964/1965 | 176 | 千吨 | 2026-9 |