| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1991/1992 | 6387 | 千吨 | 2026-9 |
| 1990/1991 | 6100 | 千吨 | 2026-9 |
| 1989/1990 | 5247 | 千吨 | 2026-9 |
| 1988/1989 | 5413 | 千吨 | 2026-9 |
| 1987/1988 | 5289 | 千吨 | 2026-9 |
| 1986/1987 | 5325 | 千吨 | 2026-9 |
| 1985/1986 | 5000 | 千吨 | 2026-9 |
| 1984/1985 | 5400 | 千吨 | 2026-9 |
| 1983/1984 | 5420 | 千吨 | 2026-9 |
| 1982/1983 | 5590 | 千吨 | 2026-9 |
| 1981/1982 | 5500 | 千吨 | 2026-9 |
| 1980/1981 | 5670 | 千吨 | 2026-9 |
| 1979/1980 | 5650 | 千吨 | 2026-9 |
| 1978/1979 | 5900 | 千吨 | 2026-9 |
| 1977/1978 | 5750 | 千吨 | 2026-9 |
| 1976/1977 | 5900 | 千吨 | 2026-9 |
| 1975/1976 | 5775 | 千吨 | 2026-9 |
| 1974/1975 | 5720 | 千吨 | 2026-9 |
| 1973/1974 | 5714 | 千吨 | 2026-9 |
| 1972/1973 | 5200 | 千吨 | 2026-9 |
| 1971/1972 | 5471 | 千吨 | 2026-9 |
| 1970/1971 | 4799 | 千吨 | 2026-9 |
| 1969/1970 | 4750 | 千吨 | 2026-9 |
| 1968/1969 | 4728 | 千吨 | 2026-9 |
| 1967/1968 | 4834 | 千吨 | 2026-9 |
| 1966/1967 | 4816 | 千吨 | 2026-9 |
| 1965/1966 | 4680 | 千吨 | 2026-9 |
| 1964/1965 | 5206 | 千吨 | 2026-9 |
| 1963/1964 | 5018 | 千吨 | 2026-9 |
| 1962/1963 | 4716 | 千吨 | 2026-9 |
| 1961/1962 | 4408 | 千吨 | 2026-9 |
| 1960/1961 | 4253 | 千吨 | 2026-9 |