| 年度 | 数值 | 单位 | 发布日期 |
| 1990/1991 | 1342 | 千吨 | 2026-9 |
| 1989/1990 | 1380 | 千吨 | 2026-9 |
| 1988/1989 | 1571 | 千吨 | 2026-9 |
| 1987/1988 | 1485 | 千吨 | 2026-9 |
| 1986/1987 | 1430 | 千吨 | 2026-9 |
| 1985/1986 | 1422 | 千吨 | 2026-9 |
| 1984/1985 | 1367 | 千吨 | 2026-9 |
| 1983/1984 | 1354 | 千吨 | 2026-9 |
| 1982/1983 | 1352 | 千吨 | 2026-9 |
| 1981/1982 | 1341 | 千吨 | 2026-9 |
| 1980/1981 | 1146 | 千吨 | 2026-9 |
| 1979/1980 | 1146 | 千吨 | 2026-9 |
| 1978/1979 | 1141 | 千吨 | 2026-9 |
| 1977/1978 | 1118 | 千吨 | 2026-9 |
| 1976/1977 | 908 | 千吨 | 2026-9 |
| 1975/1976 | 861 | 千吨 | 2026-9 |
| 1974/1975 | 821 | 千吨 | 2026-9 |
| 1973/1974 | 799 | 千吨 | 2026-9 |
| 1972/1973 | 694 | 千吨 | 2026-9 |
| 1971/1972 | 769 | 千吨 | 2026-9 |
| 1970/1971 | 679 | 千吨 | 2026-9 |
| 1969/1970 | 691 | 千吨 | 2026-9 |
| 1968/1969 | 554 | 千吨 | 2026-9 |
| 1967/1968 | 508 | 千吨 | 2026-9 |
| 1966/1967 | 596 | 千吨 | 2026-9 |
| 1965/1966 | 510 | 千吨 | 2026-9 |
| 1964/1965 | 545 | 千吨 | 2026-9 |