| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 3567 | 千吨 | 2026-9 |
| 1989/1990 | 3675 | 千吨 | 2026-9 |
| 1988/1989 | 3085 | 千吨 | 2026-9 |
| 1987/1988 | 3425 | 千吨 | 2026-9 |
| 1986/1987 | 4077 | 千吨 | 2026-9 |
| 1985/1986 | 4074 | 千吨 | 2026-9 |
| 1984/1985 | 3722 | 千吨 | 2026-9 |
| 1983/1984 | 3873 | 千吨 | 2026-9 |
| 1982/1983 | 4023 | 千吨 | 2026-9 |
| 1981/1982 | 4132 | 千吨 | 2026-9 |
| 1980/1981 | 3401 | 千吨 | 2026-9 |
| 1979/1980 | 3431 | 千吨 | 2026-9 |
| 1978/1979 | 3255 | 千吨 | 2026-9 |
| 1977/1978 | 2851 | 千吨 | 2026-9 |
| 1976/1977 | 2136 | 千吨 | 2026-9 |
| 1975/1976 | 2119 | 千吨 | 2026-9 |
| 1974/1975 | 1805 | 千吨 | 2026-9 |
| 1973/1974 | 1932 | 千吨 | 2026-9 |
| 1972/1973 | 1528 | 千吨 | 2026-9 |
| 1971/1972 | 1417 | 千吨 | 2026-9 |
| 1970/1971 | 1319 | 千吨 | 2026-9 |
| 1969/1970 | 1171 | 千吨 | 2026-9 |
| 1968/1969 | 835 | 千吨 | 2026-9 |
| 1967/1968 | 778 | 千吨 | 2026-9 |
| 1966/1967 | 722 | 千吨 | 2026-9 |
| 1965/1966 | 710 | 千吨 | 2026-9 |
| 1964/1965 | 566 | 千吨 | 2026-9 |