| 年度 | 数值 | 单位 | 发布日期 |
| 1986/1987 | 49317 | 千吨 | 2026-9 |
| 1985/1986 | 42605 | 千吨 | 2026-9 |
| 1984/1985 | 38362 | 千吨 | 2026-9 |
| 1983/1984 | 45668 | 千吨 | 2026-9 |
| 1982/1983 | 39457 | 千吨 | 2026-9 |
| 1981/1982 | 32966 | 千吨 | 2026-9 |
| 1980/1981 | 39757 | 千吨 | 2026-9 |
| 1979/1980 | 43812 | 千吨 | 2026-9 |
| 1978/1979 | 56791 | 千吨 | 2026-9 |
| 1977/1978 | 48166 | 千吨 | 2026-9 |
| 1976/1977 | 63556 | 千吨 | 2026-9 |
| 1975/1976 | 32775 | 千吨 | 2026-9 |
| 1974/1975 | 49565 | 千吨 | 2026-9 |
| 1973/1974 | 50347 | 千吨 | 2026-9 |
| 1972/1973 | 33656 | 千吨 | 2026-9 |
| 1971/1972 | 31623 | 千吨 | 2026-9 |
| 1970/1971 | 34917 | 千吨 | 2026-9 |
| 1969/1970 | 29839 | 千吨 | 2026-9 |
| 1968/1969 | 26465 | 千吨 | 2026-9 |
| 1967/1968 | 22572 | 千吨 | 2026-9 |
| 1966/1967 | 25526 | 千吨 | 2026-9 |
| 1965/1966 | 18589 | 千吨 | 2026-9 |
| 1964/1965 | 26160 | 千吨 | 2026-9 |
| 1963/1964 | 18166 | 千吨 | 2026-9 |
| 1962/1963 | 17934 | 千吨 | 2026-9 |
| 1961/1962 | 12238 | 千吨 | 2026-9 |
| 1960/1961 | 14672 | 千吨 | 2026-9 |