| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 3177 | 千吨 | 2026-9 |
| 1989/1990 | 3297 | 千吨 | 2026-9 |
| 1988/1989 | 2789 | 千吨 | 2026-9 |
| 1987/1988 | 2906 | 千吨 | 2026-9 |
| 1986/1987 | 2737 | 千吨 | 2026-9 |
| 1985/1986 | 2474 | 千吨 | 2026-9 |
| 1984/1985 | 2602 | 千吨 | 2026-9 |
| 1983/1984 | 2691 | 千吨 | 2026-9 |
| 1982/1983 | 2470 | 千吨 | 2026-9 |
| 1981/1982 | 2592 | 千吨 | 2026-9 |
| 1980/1981 | 2703 | 千吨 | 2026-9 |
| 1979/1980 | 3093 | 千吨 | 2026-9 |
| 1978/1979 | 2881 | 千吨 | 2026-9 |
| 1977/1978 | 2368 | 千吨 | 2026-9 |
| 1976/1977 | 1504 | 千吨 | 2026-9 |
| 1975/1976 | 1511 | 千吨 | 2026-9 |
| 1974/1975 | 1134 | 千吨 | 2026-9 |
| 1973/1974 | 1500 | 千吨 | 2026-9 |
| 1972/1973 | 1191 | 千吨 | 2026-9 |
| 1971/1972 | 1422 | 千吨 | 2026-9 |
| 1970/1971 | 1084 | 千吨 | 2026-9 |
| 1969/1970 | 1081 | 千吨 | 2026-9 |
| 1968/1969 | 854 | 千吨 | 2026-9 |
| 1967/1968 | 537 | 千吨 | 2026-9 |
| 1966/1967 | 440 | 千吨 | 2026-9 |
| 1965/1966 | 399 | 千吨 | 2026-9 |
| 1964/1965 | 417 | 千吨 | 2026-9 |