| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 1869 | 千吨 | 2026-9 |
| 1989/1990 | 2370 | 千吨 | 2026-9 |
| 1988/1989 | 1675 | 千吨 | 2026-9 |
| 1987/1988 | 2100 | 千吨 | 2026-9 |
| 1986/1987 | 2362 | 千吨 | 2026-9 |
| 1985/1986 | 2132 | 千吨 | 2026-9 |
| 1984/1985 | 1939 | 千吨 | 2026-9 |
| 1983/1984 | 2669 | 千吨 | 2026-9 |
| 1982/1983 | 3122 | 千吨 | 2026-9 |
| 1981/1982 | 3200 | 千吨 | 2026-9 |
| 1980/1981 | 2850 | 千吨 | 2026-9 |
| 1979/1980 | 3103 | 千吨 | 2026-9 |
| 1978/1979 | 2205 | 千吨 | 2026-9 |
| 1977/1978 | 2125 | 千吨 | 2026-9 |
| 1976/1977 | 1840 | 千吨 | 2026-9 |
| 1975/1976 | 1955 | 千吨 | 2026-9 |
| 1974/1975 | 1775 | 千吨 | 2026-9 |
| 1973/1974 | 1600 | 千吨 | 2026-9 |
| 1972/1973 | 838 | 千吨 | 2026-9 |
| 1971/1972 | 1430 | 千吨 | 2026-9 |
| 1970/1971 | 1314 | 千吨 | 2026-9 |
| 1969/1970 | 1229 | 千吨 | 2026-9 |
| 1968/1969 | 1026 | 千吨 | 2026-9 |
| 1967/1968 | 924 | 千吨 | 2026-9 |
| 1966/1967 | 813 | 千吨 | 2026-9 |
| 1965/1966 | 638 | 千吨 | 2026-9 |
| 1964/1965 | 340 | 千吨 | 2026-9 |