| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 940 | 千吨 | 2026-9 |
| 1989/1990 | 866 | 千吨 | 2026-9 |
| 1988/1989 | 814 | 千吨 | 2026-9 |
| 1987/1988 | 1034 | 千吨 | 2026-9 |
| 1986/1987 | 2213 | 千吨 | 2026-9 |
| 1985/1986 | 2107 | 千吨 | 2026-9 |
| 1984/1985 | 1675 | 千吨 | 2026-9 |
| 1983/1984 | 1612 | 千吨 | 2026-9 |
| 1982/1983 | 2109 | 千吨 | 2026-9 |
| 1981/1982 | 1768 | 千吨 | 2026-9 |
| 1980/1981 | 1365 | 千吨 | 2026-9 |
| 1979/1980 | 1199 | 千吨 | 2026-9 |
| 1978/1979 | 1010 | 千吨 | 2026-9 |
| 1977/1978 | 991 | 千吨 | 2026-9 |
| 1976/1977 | 715 | 千吨 | 2026-9 |
| 1975/1976 | 781 | 千吨 | 2026-9 |
| 1974/1975 | 787 | 千吨 | 2026-9 |
| 1973/1974 | 1220 | 千吨 | 2026-9 |
| 1972/1973 | 1269 | 千吨 | 2026-9 |
| 1971/1972 | 913 | 千吨 | 2026-9 |
| 1970/1971 | 656 | 千吨 | 2026-9 |
| 1969/1970 | 581 | 千吨 | 2026-9 |
| 1968/1969 | 428 | 千吨 | 2026-9 |
| 1967/1968 | 362 | 千吨 | 2026-9 |
| 1966/1967 | 411 | 千吨 | 2026-9 |
| 1965/1966 | 461 | 千吨 | 2026-9 |
| 1964/1965 | 330 | 千吨 | 2026-9 |