| 年度 | 数值 | 单位 | 发布日期 |
| 1992/1993 | 149.415 | 千吨 | 2026-9 |
| 1991/1992 | 166.491 | 千吨 | 2026-9 |
| 1990/1991 | 151.55 | 千吨 | 2026-9 |
| 1989/1990 | 162.934 | 千吨 | 2026-9 |
| 1988/1989 | 159.376 | 千吨 | 2026-9 |
| 1987/1988 | 134.474 | 千吨 | 2026-9 |
| 1986/1987 | 128.782 | 千吨 | 2026-9 |
| 1985/1986 | 119.532 | 千吨 | 2026-9 |
| 1984/1985 | 132.339 | 千吨 | 2026-9 |
| 1983/1984 | 128.07 | 千吨 | 2026-9 |
| 1982/1983 | 71.15 | 千吨 | 2026-9 |
| 1981/1982 | 79.688 | 千吨 | 2026-9 |
| 1980/1981 | 85.38 | 千吨 | 2026-9 |
| 1979/1980 | 34.864 | 千吨 | 2026-9 |
| 1978/1979 | 70.439 | 千吨 | 2026-9 |
| 1977/1978 | 65.458 | 千吨 | 2026-9 |
| 1976/1977 | 61.189 | 千吨 | 2026-9 |
| 1975/1976 | 61.901 | 千吨 | 2026-9 |
| 1974/1975 | 46.248 | 千吨 | 2026-9 |
| 1973/1974 | 50.517 | 千吨 | 2026-9 |
| 1972/1973 | 41.267 | 千吨 | 2026-9 |
| 1971/1972 | 39.133 | 千吨 | 2026-9 |
| 1970/1971 | 48.382 | 千吨 | 2026-9 |
| 1969/1970 | 26.326 | 千吨 | 2026-9 |
| 1968/1969 | 32.729 | 千吨 | 2026-9 |
| 1967/1968 | 35.575 | 千吨 | 2026-9 |
| 1966/1967 | 31.306 | 千吨 | 2026-9 |
| 1965/1966 | 34.152 | 千吨 | 2026-9 |
| 1964/1965 | 32.018 | 千吨 | 2026-9 |