| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 622 | 千吨 | 2026-9 |
| 1989/1990 | 711 | 千吨 | 2026-9 |
| 1988/1989 | 688 | 千吨 | 2026-9 |
| 1987/1988 | 565 | 千吨 | 2026-9 |
| 1986/1987 | 1124 | 千吨 | 2026-9 |
| 1985/1986 | 1624 | 千吨 | 2026-9 |
| 1984/1985 | 1500 | 千吨 | 2026-9 |
| 1983/1984 | 1200 | 千吨 | 2026-9 |
| 1982/1983 | 1584 | 千吨 | 2026-9 |
| 1981/1982 | 1460 | 千吨 | 2026-9 |
| 1980/1981 | 1131 | 千吨 | 2026-9 |
| 1979/1980 | 1689 | 千吨 | 2026-9 |
| 1978/1979 | 1706 | 千吨 | 2026-9 |
| 1977/1978 | 1279 | 千吨 | 2026-9 |
| 1976/1977 | 1179 | 千吨 | 2026-9 |
| 1975/1976 | 1146 | 千吨 | 2026-9 |
| 1974/1975 | 1217 | 千吨 | 2026-9 |
| 1973/1974 | 1226 | 千吨 | 2026-9 |
| 1972/1973 | 888 | 千吨 | 2026-9 |
| 1971/1972 | 819 | 千吨 | 2026-9 |
| 1970/1971 | 858 | 千吨 | 2026-9 |
| 1969/1970 | 845 | 千吨 | 2026-9 |
| 1968/1969 | 607 | 千吨 | 2026-9 |
| 1967/1968 | 621 | 千吨 | 2026-9 |
| 1966/1967 | 594 | 千吨 | 2026-9 |
| 1965/1966 | 530 | 千吨 | 2026-9 |
| 1964/1965 | 449 | 千吨 | 2026-9 |