| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 4174 | 千吨 | 2026-9 |
| 1989/1990 | 4064 | 千吨 | 2026-9 |
| 1988/1989 | 3740 | 千吨 | 2026-9 |
| 1987/1988 | 4150 | 千吨 | 2026-9 |
| 1986/1987 | 5110 | 千吨 | 2026-9 |
| 1985/1986 | 4954 | 千吨 | 2026-9 |
| 1984/1985 | 4702 | 千吨 | 2026-9 |
| 1983/1984 | 4464 | 千吨 | 2026-9 |
| 1982/1983 | 5218 | 千吨 | 2026-9 |
| 1981/1982 | 5354 | 千吨 | 2026-9 |
| 1980/1981 | 4437 | 千吨 | 2026-9 |
| 1979/1980 | 5164 | 千吨 | 2026-9 |
| 1978/1979 | 4792 | 千吨 | 2026-9 |
| 1977/1978 | 4635 | 千吨 | 2026-9 |
| 1976/1977 | 3672 | 千吨 | 2026-9 |
| 1975/1976 | 3694 | 千吨 | 2026-9 |
| 1974/1975 | 3549 | 千吨 | 2026-9 |
| 1973/1974 | 3577 | 千吨 | 2026-9 |
| 1972/1973 | 3405 | 千吨 | 2026-9 |
| 1971/1972 | 3126 | 千吨 | 2026-9 |
| 1970/1971 | 2938 | 千吨 | 2026-9 |
| 1969/1970 | 2648 | 千吨 | 2026-9 |
| 1968/1969 | 2098 | 千吨 | 2026-9 |
| 1967/1968 | 1853 | 千吨 | 2026-9 |
| 1966/1967 | 2068 | 千吨 | 2026-9 |
| 1965/1966 | 2106 | 千吨 | 2026-9 |
| 1964/1965 | 1502 | 千吨 | 2026-9 |