| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1988/1989 | 3964 | 千吨 | 2026-9 |
| 1987/1988 | 3862 | 千吨 | 2026-9 |
| 1986/1987 | 3745 | 千吨 | 2026-9 |
| 1985/1986 | 3610 | 千吨 | 2026-9 |
| 1984/1985 | 3894 | 千吨 | 2026-9 |
| 1983/1984 | 4043 | 千吨 | 2026-9 |
| 1982/1983 | 3080 | 千吨 | 2026-9 |
| 1981/1982 | 2850 | 千吨 | 2026-9 |
| 1980/1981 | 2342 | 千吨 | 2026-9 |
| 1979/1980 | 2981 | 千吨 | 2026-9 |
| 1978/1979 | 3012 | 千吨 | 2026-9 |
| 1977/1978 | 2168 | 千吨 | 2026-9 |
| 1976/1977 | 1557 | 千吨 | 2026-9 |
| 1975/1976 | 2052 | 千吨 | 2026-9 |
| 1974/1975 | 1909 | 千吨 | 2026-9 |
| 1973/1974 | 1466 | 千吨 | 2026-9 |
| 1972/1973 | 1699 | 千吨 | 2026-9 |
| 1971/1972 | 1582 | 千吨 | 2026-9 |
| 1970/1971 | 1830 | 千吨 | 2026-9 |
| 1969/1970 | 2124 | 千吨 | 2026-9 |
| 1968/1969 | 2294 | 千吨 | 2026-9 |
| 1967/1968 | 2428 | 千吨 | 2026-9 |
| 1966/1967 | 1580 | 千吨 | 2026-9 |
| 1965/1966 | 1773 | 千吨 | 2026-9 |
| 1964/1965 | 1147 | 千吨 | 2026-9 |
| 1963/1964 | 665 | 千吨 | 2026-9 |
| 1962/1963 | 916 | 千吨 | 2026-9 |
| 1961/1962 | 1316 | 千吨 | 2026-9 |
| 1960/1961 | 1461 | 千吨 | 2026-9 |