| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 1957 | 千吨 | 2026-9 |
| 1989/1990 | 1941 | 千吨 | 2026-9 |
| 1988/1989 | 1755 | 千吨 | 2026-9 |
| 1987/1988 | 1654 | 千吨 | 2026-9 |
| 1986/1987 | 1598 | 千吨 | 2026-9 |
| 1985/1986 | 1553 | 千吨 | 2026-9 |
| 1984/1985 | 1615 | 千吨 | 2026-9 |
| 1983/1984 | 1704 | 千吨 | 2026-9 |
| 1982/1983 | 1957 | 千吨 | 2026-9 |
| 1981/1982 | 1506 | 千吨 | 2026-9 |
| 1980/1981 | 1753 | 千吨 | 2026-9 |
| 1979/1980 | 1966 | 千吨 | 2026-9 |
| 1978/1979 | 1535 | 千吨 | 2026-9 |
| 1977/1978 | 1145 | 千吨 | 2026-9 |
| 1976/1977 | 593 | 千吨 | 2026-9 |
| 1975/1976 | 637 | 千吨 | 2026-9 |
| 1974/1975 | 559 | 千吨 | 2026-9 |
| 1973/1974 | 595 | 千吨 | 2026-9 |
| 1972/1973 | 568 | 千吨 | 2026-9 |
| 1971/1972 | 438 | 千吨 | 2026-9 |
| 1970/1971 | 423 | 千吨 | 2026-9 |
| 1969/1970 | 365 | 千吨 | 2026-9 |
| 1968/1969 | 369 | 千吨 | 2026-9 |
| 1967/1968 | 243 | 千吨 | 2026-9 |
| 1966/1967 | 137 | 千吨 | 2026-9 |
| 1965/1966 | 131 | 千吨 | 2026-9 |
| 1964/1965 | 116 | 千吨 | 2026-9 |