| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 477.417 | 千吨 | 2026-9 |
| 1989/1990 | 480.974 | 千吨 | 2026-9 |
| 1988/1989 | 509.434 | 千吨 | 2026-9 |
| 1987/1988 | 401.286 | 千吨 | 2026-9 |
| 1986/1987 | 319.464 | 千吨 | 2026-9 |
| 1985/1986 | 243.333 | 千吨 | 2026-9 |
| 1984/1985 | 207.047 | 千吨 | 2026-9 |
| 1983/1984 | 188.548 | 千吨 | 2026-9 |
| 1982/1983 | 168.626 | 千吨 | 2026-9 |
| 1981/1982 | 163.645 | 千吨 | 2026-9 |
| 1980/1981 | 129.493 | 千吨 | 2026-9 |
| 1979/1980 | 117.398 | 千吨 | 2026-9 |
| 1978/1979 | 98.899 | 千吨 | 2026-9 |
| 1977/1978 | 91.784 | 千吨 | 2026-9 |
| 1976/1977 | 114.552 | 千吨 | 2026-9 |
| 1975/1976 | 103.879 | 千吨 | 2026-9 |
| 1974/1975 | 137.32 | 千吨 | 2026-9 |
| 1973/1974 | 147.281 | 千吨 | 2026-9 |
| 1972/1973 | 151.55 | 千吨 | 2026-9 |
| 1971/1972 | 143.723 | 千吨 | 2026-9 |
| 1970/1971 | 113.84 | 千吨 | 2026-9 |
| 1969/1970 | 66.881 | 千吨 | 2026-9 |
| 1968/1969 | 64.035 | 千吨 | 2026-9 |
| 1967/1968 | 65.458 | 千吨 | 2026-9 |
| 1966/1967 | 59.055 | 千吨 | 2026-9 |
| 1965/1966 | 41.979 | 千吨 | 2026-9 |
| 1964/1965 | 30.595 | 千吨 | 2026-9 |