| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 49.214 | 千吨 | 2026-9 |
| 1989/1990 | 44.699 | 千吨 | 2026-9 |
| 1988/1989 | 44.699 | 千吨 | 2026-9 |
| 1987/1988 | 48.311 | 千吨 | 2026-9 |
| 1986/1987 | 49.214 | 千吨 | 2026-9 |
| 1985/1986 | 38.829 | 千吨 | 2026-9 |
| 1984/1985 | 24.381 | 千吨 | 2026-9 |
| 1983/1984 | 30.702 | 千吨 | 2026-9 |
| 1982/1983 | 35.217 | 千吨 | 2026-9 |
| 1981/1982 | 29.799 | 千吨 | 2026-9 |
| 1980/1981 | 24.381 | 千吨 | 2026-9 |
| 1979/1980 | 16.706 | 千吨 | 2026-9 |
| 1978/1979 | 16.706 | 千吨 | 2026-9 |
| 1977/1978 | 23.478 | 千吨 | 2026-9 |
| 1976/1977 | 24.381 | 千吨 | 2026-9 |
| 1975/1976 | 21.672 | 千吨 | 2026-9 |
| 1974/1975 | 13.997 | 千吨 | 2026-9 |
| 1973/1974 | 11.739 | 千吨 | 2026-9 |
| 1972/1973 | 14.9 | 千吨 | 2026-9 |
| 1971/1972 | 12.642 | 千吨 | 2026-9 |
| 1970/1971 | 13.545 | 千吨 | 2026-9 |
| 1969/1970 | 10.836 | 千吨 | 2026-9 |
| 1968/1969 | 14.9 | 千吨 | 2026-9 |
| 1967/1968 | 16.254 | 千吨 | 2026-9 |
| 1966/1967 | 23.93 | 千吨 | 2026-9 |
| 1965/1966 | 19.866 | 千吨 | 2026-9 |
| 1964/1965 | 25.284 | 千吨 | 2026-9 |