| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 286 | 千吨 | 2026-9 |
| 1989/1990 | 280 | 千吨 | 2026-9 |
| 1988/1989 | 210 | 千吨 | 2026-9 |
| 1987/1988 | 215 | 千吨 | 2026-9 |
| 1986/1987 | 260 | 千吨 | 2026-9 |
| 1985/1986 | 278 | 千吨 | 2026-9 |
| 1984/1985 | 190 | 千吨 | 2026-9 |
| 1983/1984 | 166 | 千吨 | 2026-9 |
| 1982/1983 | 242 | 千吨 | 2026-9 |
| 1981/1982 | 275 | 千吨 | 2026-9 |
| 1980/1981 | 263 | 千吨 | 2026-9 |
| 1979/1980 | 202 | 千吨 | 2026-9 |
| 1978/1979 | 188 | 千吨 | 2026-9 |
| 1977/1978 | 259 | 千吨 | 2026-9 |
| 1976/1977 | 307 | 千吨 | 2026-9 |
| 1975/1976 | 409 | 千吨 | 2026-9 |
| 1974/1975 | 300 | 千吨 | 2026-9 |
| 1973/1974 | 124 | 千吨 | 2026-9 |
| 1972/1973 | 251 | 千吨 | 2026-9 |
| 1971/1972 | 327 | 千吨 | 2026-9 |
| 1970/1971 | 218 | 千吨 | 2026-9 |
| 1969/1970 | 128 | 千吨 | 2026-9 |
| 1968/1969 | 131 | 千吨 | 2026-9 |
| 1967/1968 | 162 | 千吨 | 2026-9 |
| 1966/1967 | 208 | 千吨 | 2026-9 |
| 1965/1966 | 221 | 千吨 | 2026-9 |
| 1964/1965 | 209 | 千吨 | 2026-9 |