| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 390 | 千吨 | 2026-9 |
| 1989/1990 | 410 | 千吨 | 2026-9 |
| 1988/1989 | 270 | 千吨 | 2026-9 |
| 1987/1988 | 225 | 千吨 | 2026-9 |
| 1986/1987 | 237 | 千吨 | 2026-9 |
| 1985/1986 | 275 | 千吨 | 2026-9 |
| 1984/1985 | 197 | 千吨 | 2026-9 |
| 1983/1984 | 187 | 千吨 | 2026-9 |
| 1982/1983 | 214 | 千吨 | 2026-9 |
| 1981/1982 | 161 | 千吨 | 2026-9 |
| 1980/1981 | 181 | 千吨 | 2026-9 |
| 1979/1980 | 219 | 千吨 | 2026-9 |
| 1978/1979 | 179 | 千吨 | 2026-9 |
| 1977/1978 | 164 | 千吨 | 2026-9 |
| 1976/1977 | 196 | 千吨 | 2026-9 |
| 1975/1976 | 207 | 千吨 | 2026-9 |
| 1974/1975 | 200 | 千吨 | 2026-9 |
| 1973/1974 | 157 | 千吨 | 2026-9 |
| 1972/1973 | 172 | 千吨 | 2026-9 |
| 1971/1972 | 173 | 千吨 | 2026-9 |
| 1970/1971 | 136 | 千吨 | 2026-9 |
| 1969/1970 | 94 | 千吨 | 2026-9 |
| 1968/1969 | 87 | 千吨 | 2026-9 |
| 1967/1968 | 83 | 千吨 | 2026-9 |
| 1966/1967 | 70 | 千吨 | 2026-9 |
| 1965/1966 | 79 | 千吨 | 2026-9 |
| 1964/1965 | 71 | 千吨 | 2026-9 |