| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 391.325 | 千吨 | 2026-9 |
| 1989/1990 | 347.212 | 千吨 | 2026-9 |
| 1988/1989 | 266.813 | 千吨 | 2026-9 |
| 1987/1988 | 288.869 | 千吨 | 2026-9 |
| 1986/1987 | 331.559 | 千吨 | 2026-9 |
| 1985/1986 | 278.197 | 千吨 | 2026-9 |
| 1984/1985 | 258.986 | 千吨 | 2026-9 |
| 1983/1984 | 163.645 | 千吨 | 2026-9 |
| 1982/1983 | 161.511 | 千吨 | 2026-9 |
| 1981/1982 | 96.053 | 千吨 | 2026-9 |
| 1980/1981 | 81.111 | 千吨 | 2026-9 |
| 1979/1980 | 102.456 | 千吨 | 2026-9 |
| 1978/1979 | 96.764 | 千吨 | 2026-9 |
| 1977/1978 | 72.573 | 千吨 | 2026-9 |
| 1976/1977 | 96.764 | 千吨 | 2026-9 |
| 1975/1976 | 89.649 | 千吨 | 2026-9 |
| 1974/1975 | 77.554 | 千吨 | 2026-9 |
| 1973/1974 | 81.823 | 千吨 | 2026-9 |
| 1972/1973 | 85.38 | 千吨 | 2026-9 |
| 1971/1972 | 86.803 | 千吨 | 2026-9 |
| 1970/1971 | 51.94 | 千吨 | 2026-9 |
| 1969/1970 | 36.287 | 千吨 | 2026-9 |
| 1968/1969 | 51.94 | 千吨 | 2026-9 |
| 1967/1968 | 37.71 | 千吨 | 2026-9 |
| 1966/1967 | 27.749 | 千吨 | 2026-9 |
| 1965/1966 | 33.441 | 千吨 | 2026-9 |
| 1964/1965 | 27.037 | 千吨 | 2026-9 |