| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 130 | 千吨 | 2026-9 |
| 1989/1990 | 100 | 千吨 | 2026-9 |
| 1988/1989 | 83 | 千吨 | 2026-9 |
| 1987/1988 | 60 | 千吨 | 2026-9 |
| 1986/1987 | 75 | 千吨 | 2026-9 |
| 1985/1986 | 75 | 千吨 | 2026-9 |
| 1984/1985 | 30 | 千吨 | 2026-9 |
| 1983/1984 | 15 | 千吨 | 2026-9 |
| 1982/1983 | 30 | 千吨 | 2026-9 |
| 1981/1982 | 85 | 千吨 | 2026-9 |
| 1980/1981 | 105 | 千吨 | 2026-9 |
| 1979/1980 | 111 | 千吨 | 2026-9 |
| 1978/1979 | 101 | 千吨 | 2026-9 |
| 1977/1978 | 103 | 千吨 | 2026-9 |
| 1976/1977 | 151 | 千吨 | 2026-9 |
| 1975/1976 | 241 | 千吨 | 2026-9 |
| 1974/1975 | 246 | 千吨 | 2026-9 |
| 1973/1974 | 220 | 千吨 | 2026-9 |
| 1972/1973 | 91 | 千吨 | 2026-9 |
| 1971/1972 | 185 | 千吨 | 2026-9 |
| 1970/1971 | 115 | 千吨 | 2026-9 |
| 1969/1970 | 125 | 千吨 | 2026-9 |
| 1968/1969 | 135 | 千吨 | 2026-9 |
| 1967/1968 | 167 | 千吨 | 2026-9 |
| 1966/1967 | 154 | 千吨 | 2026-9 |
| 1965/1966 | 137 | 千吨 | 2026-9 |
| 1964/1965 | 155 | 千吨 | 2026-9 |