| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 2553 | 千吨 | 2026-9 |
| 1989/1990 | 2582 | 千吨 | 2026-9 |
| 1988/1989 | 2221 | 千吨 | 2026-9 |
| 1987/1988 | 2355 | 千吨 | 2026-9 |
| 1986/1987 | 2174 | 千吨 | 2026-9 |
| 1985/1986 | 1978 | 千吨 | 2026-9 |
| 1984/1985 | 2073 | 千吨 | 2026-9 |
| 1983/1984 | 2158 | 千吨 | 2026-9 |
| 1982/1983 | 1988 | 千吨 | 2026-9 |
| 1981/1982 | 2098 | 千吨 | 2026-9 |
| 1980/1981 | 2191 | 千吨 | 2026-9 |
| 1979/1980 | 2495 | 千吨 | 2026-9 |
| 1978/1979 | 2287 | 千吨 | 2026-9 |
| 1977/1978 | 1862 | 千吨 | 2026-9 |
| 1976/1977 | 1170 | 千吨 | 2026-9 |
| 1975/1976 | 1187 | 千吨 | 2026-9 |
| 1974/1975 | 909 | 千吨 | 2026-9 |
| 1973/1974 | 1197 | 千吨 | 2026-9 |
| 1972/1973 | 942 | 千吨 | 2026-9 |
| 1971/1972 | 1130 | 千吨 | 2026-9 |
| 1970/1971 | 869 | 千吨 | 2026-9 |
| 1969/1970 | 866 | 千吨 | 2026-9 |
| 1968/1969 | 676 | 千吨 | 2026-9 |
| 1967/1968 | 431 | 千吨 | 2026-9 |
| 1966/1967 | 355 | 千吨 | 2026-9 |
| 1965/1966 | 321 | 千吨 | 2026-9 |
| 1964/1965 | 336 | 千吨 | 2026-9 |