| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 3454 | 千吨 | 2026-9 |
| 1989/1990 | 3221 | 千吨 | 2026-9 |
| 1988/1989 | 2717 | 千吨 | 2026-9 |
| 1987/1988 | 2918 | 千吨 | 2026-9 |
| 1986/1987 | 2979 | 千吨 | 2026-9 |
| 1985/1986 | 2863 | 千吨 | 2026-9 |
| 1984/1985 | 2766 | 千吨 | 2026-9 |
| 1983/1984 | 2972 | 千吨 | 2026-9 |
| 1982/1983 | 2924 | 千吨 | 2026-9 |
| 1981/1982 | 2719 | 千吨 | 2026-9 |
| 1980/1981 | 2463 | 千吨 | 2026-9 |
| 1979/1980 | 2609 | 千吨 | 2026-9 |
| 1978/1979 | 2259 | 千吨 | 2026-9 |
| 1977/1978 | 2208 | 千吨 | 2026-9 |
| 1976/1977 | 1980 | 千吨 | 2026-9 |
| 1975/1976 | 2189 | 千吨 | 2026-9 |
| 1974/1975 | 1679 | 千吨 | 2026-9 |
| 1973/1974 | 1425 | 千吨 | 2026-9 |
| 1972/1973 | 1038 | 千吨 | 2026-9 |
| 1971/1972 | 1163 | 千吨 | 2026-9 |
| 1970/1971 | 1065 | 千吨 | 2026-9 |
| 1969/1970 | 992 | 千吨 | 2026-9 |
| 1968/1969 | 927 | 千吨 | 2026-9 |
| 1967/1968 | 785 | 千吨 | 2026-9 |
| 1966/1967 | 661 | 千吨 | 2026-9 |
| 1965/1966 | 655 | 千吨 | 2026-9 |
| 1964/1965 | 366 | 千吨 | 2026-9 |