| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1986/1987 | 1784 | 千吨 | 2026-9 |
| 1985/1986 | 1794 | 千吨 | 2026-9 |
| 1984/1985 | 1632 | 千吨 | 2026-9 |
| 1983/1984 | 1568 | 千吨 | 2026-9 |
| 1982/1983 | 1665 | 千吨 | 2026-9 |
| 1981/1982 | 2212 | 千吨 | 2026-9 |
| 1980/1981 | 2786 | 千吨 | 2026-9 |
| 1979/1980 | 1876 | 千吨 | 2026-9 |
| 1978/1979 | 1589 | 千吨 | 2026-9 |
| 1977/1978 | 1588 | 千吨 | 2026-9 |
| 1976/1977 | 1534 | 千吨 | 2026-9 |
| 1975/1976 | 1370 | 千吨 | 2026-9 |
| 1974/1975 | 1326 | 千吨 | 2026-9 |
| 1973/1974 | 991 | 千吨 | 2026-9 |
| 1972/1973 | 1002 | 千吨 | 2026-9 |
| 1971/1972 | 961 | 千吨 | 2026-9 |
| 1970/1971 | 1005 | 千吨 | 2026-9 |
| 1969/1970 | 906 | 千吨 | 2026-9 |
| 1968/1969 | 942 | 千吨 | 2026-9 |
| 1967/1968 | 778 | 千吨 | 2026-9 |
| 1966/1967 | 809 | 千吨 | 2026-9 |
| 1965/1966 | 553 | 千吨 | 2026-9 |
| 1964/1965 | 510 | 千吨 | 2026-9 |
| 1963/1964 | 578 | 千吨 | 2026-9 |
| 1962/1963 | 341 | 千吨 | 2026-9 |
| 1961/1962 | 470 | 千吨 | 2026-9 |
| 1960/1961 | 116 | 千吨 | 2026-9 |