| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 964 | 千吨 | 2026-9 |
| 1989/1990 | 859 | 千吨 | 2026-9 |
| 1988/1989 | 684 | 千吨 | 2026-9 |
| 1987/1988 | 836 | 千吨 | 2026-9 |
| 1986/1987 | 961 | 千吨 | 2026-9 |
| 1985/1986 | 917 | 千吨 | 2026-9 |
| 1984/1985 | 1013 | 千吨 | 2026-9 |
| 1983/1984 | 754 | 千吨 | 2026-9 |
| 1982/1983 | 735 | 千吨 | 2026-9 |
| 1981/1982 | 414 | 千吨 | 2026-9 |
| 1980/1981 | 250 | 千吨 | 2026-9 |
| 1979/1980 | 255 | 千吨 | 2026-9 |
| 1978/1979 | 227 | 千吨 | 2026-9 |
| 1977/1978 | 197 | 千吨 | 2026-9 |
| 1976/1977 | 146 | 千吨 | 2026-9 |
| 1975/1976 | 166 | 千吨 | 2026-9 |
| 1974/1975 | 83 | 千吨 | 2026-9 |
| 1973/1974 | 66 | 千吨 | 2026-9 |
| 1972/1973 | 19 | 千吨 | 2026-9 |
| 1971/1972 | 37 | 千吨 | 2026-9 |
| 1970/1971 | 53 | 千吨 | 2026-9 |
| 1969/1970 | 52 | 千吨 | 2026-9 |
| 1968/1969 | 19 | 千吨 | 2026-9 |