| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 3214 | 千吨 | 2026-9 |
| 1989/1990 | 3168 | 千吨 | 2026-9 |
| 1988/1989 | 2906 | 千吨 | 2026-9 |
| 1987/1988 | 3104 | 千吨 | 2026-9 |
| 1986/1987 | 2882 | 千吨 | 2026-9 |
| 1985/1986 | 2830 | 千吨 | 2026-9 |
| 1984/1985 | 3002 | 千吨 | 2026-9 |
| 1983/1984 | 2840 | 千吨 | 2026-9 |
| 1982/1983 | 3090 | 千吨 | 2026-9 |
| 1981/1982 | 3569 | 千吨 | 2026-9 |
| 1980/1981 | 3063 | 千吨 | 2026-9 |
| 1979/1980 | 3949 | 千吨 | 2026-9 |
| 1978/1979 | 3758 | 千吨 | 2026-9 |
| 1977/1978 | 3611 | 千吨 | 2026-9 |
| 1976/1977 | 2957 | 千吨 | 2026-9 |
| 1975/1976 | 2913 | 千吨 | 2026-9 |
| 1974/1975 | 2762 | 千吨 | 2026-9 |
| 1973/1974 | 2357 | 千吨 | 2026-9 |
| 1972/1973 | 2136 | 千吨 | 2026-9 |
| 1971/1972 | 2213 | 千吨 | 2026-9 |
| 1970/1971 | 2282 | 千吨 | 2026-9 |
| 1969/1970 | 2067 | 千吨 | 2026-9 |
| 1968/1969 | 1670 | 千吨 | 2026-9 |
| 1967/1968 | 1491 | 千吨 | 2026-9 |
| 1966/1967 | 1657 | 千吨 | 2026-9 |
| 1965/1966 | 1645 | 千吨 | 2026-9 |
| 1964/1965 | 1172 | 千吨 | 2026-9 |