| 年度 | 数值 | 单位 | 发布日期 |
| 1990/1991 | 72.5 | 千吨 | 2026-9 |
| 1989/1990 | 94.25 | 千吨 | 2026-9 |
| 1988/1989 | 116 | 千吨 | 2026-9 |
| 1987/1988 | 107.3 | 千吨 | 2026-9 |
| 1986/1987 | 102.95 | 千吨 | 2026-9 |
| 1985/1986 | 134.85 | 千吨 | 2026-9 |
| 1984/1985 | 174 | 千吨 | 2026-9 |
| 1983/1984 | 24.65 | 千吨 | 2026-9 |
| 1982/1983 | 36.25 | 千吨 | 2026-9 |
| 1981/1982 | 102.95 | 千吨 | 2026-9 |
| 1980/1981 | 34.8 | 千吨 | 2026-9 |
| 1979/1980 | 56.55 | 千吨 | 2026-9 |
| 1978/1979 | 179.8 | 千吨 | 2026-9 |
| 1977/1978 | 142.1 | 千吨 | 2026-9 |
| 1976/1977 | 192.85 | 千吨 | 2026-9 |
| 1975/1976 | 256.65 | 千吨 | 2026-9 |
| 1974/1975 | 223.3 | 千吨 | 2026-9 |
| 1973/1974 | 201.55 | 千吨 | 2026-9 |
| 1972/1973 | 58 | 千吨 | 2026-9 |
| 1971/1972 | 116 | 千吨 | 2026-9 |
| 1970/1971 | 304.5 | 千吨 | 2026-9 |
| 1969/1970 | 203 | 千吨 | 2026-9 |
| 1968/1969 | 124.7 | 千吨 | 2026-9 |
| 1967/1968 | 179.8 | 千吨 | 2026-9 |
| 1966/1967 | 118.9 | 千吨 | 2026-9 |
| 1965/1966 | 140.65 | 千吨 | 2026-9 |
| 1964/1965 | 143.55 | 千吨 | 2026-9 |