| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 991 | 千吨 | 2026-9 |
| 1989/1990 | 880 | 千吨 | 2026-9 |
| 1988/1989 | 704 | 千吨 | 2026-9 |
| 1987/1988 | 869 | 千吨 | 2026-9 |
| 1986/1987 | 987 | 千吨 | 2026-9 |
| 1985/1986 | 1009 | 千吨 | 2026-9 |
| 1984/1985 | 1046 | 千吨 | 2026-9 |
| 1983/1984 | 786 | 千吨 | 2026-9 |
| 1982/1983 | 749 | 千吨 | 2026-9 |
| 1981/1982 | 457 | 千吨 | 2026-9 |
| 1980/1981 | 275 | 千吨 | 2026-9 |
| 1979/1980 | 268 | 千吨 | 2026-9 |
| 1978/1979 | 241 | 千吨 | 2026-9 |
| 1977/1978 | 240 | 千吨 | 2026-9 |
| 1976/1977 | 204 | 千吨 | 2026-9 |
| 1975/1976 | 200 | 千吨 | 2026-9 |
| 1974/1975 | 125 | 千吨 | 2026-9 |
| 1973/1974 | 104 | 千吨 | 2026-9 |
| 1972/1973 | 59 | 千吨 | 2026-9 |
| 1971/1972 | 84 | 千吨 | 2026-9 |
| 1970/1971 | 99 | 千吨 | 2026-9 |
| 1969/1970 | 95 | 千吨 | 2026-9 |
| 1968/1969 | 68 | 千吨 | 2026-9 |