| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 3504 | 千吨 | 2026-9 |
| 1989/1990 | 3350 | 千吨 | 2026-9 |
| 1988/1989 | 2961 | 千吨 | 2026-9 |
| 1987/1988 | 3183 | 千吨 | 2026-9 |
| 1986/1987 | 3276 | 千吨 | 2026-9 |
| 1985/1986 | 3120 | 千吨 | 2026-9 |
| 1984/1985 | 2554 | 千吨 | 2026-9 |
| 1983/1984 | 2176 | 千吨 | 2026-9 |
| 1982/1983 | 2652 | 千吨 | 2026-9 |
| 1981/1982 | 2747 | 千吨 | 2026-9 |
| 1980/1981 | 1949 | 千吨 | 2026-9 |
| 1979/1980 | 2857 | 千吨 | 2026-9 |
| 1978/1979 | 2671 | 千吨 | 2026-9 |
| 1977/1978 | 2093 | 千吨 | 2026-9 |
| 1976/1977 | 1663 | 千吨 | 2026-9 |
| 1975/1976 | 1719 | 千吨 | 2026-9 |
| 1974/1975 | 1422 | 千吨 | 2026-9 |
| 1973/1974 | 1600 | 千吨 | 2026-9 |
| 1972/1973 | 1189 | 千吨 | 2026-9 |
| 1971/1972 | 1129 | 千吨 | 2026-9 |
| 1970/1971 | 1011 | 千吨 | 2026-9 |
| 1969/1970 | 941 | 千吨 | 2026-9 |
| 1968/1969 | 706 | 千吨 | 2026-9 |
| 1967/1968 | 691 | 千吨 | 2026-9 |
| 1966/1967 | 645 | 千吨 | 2026-9 |
| 1965/1966 | 551 | 千吨 | 2026-9 |
| 1964/1965 | 468 | 千吨 | 2026-9 |