| 年度 | 数值 | 单位 | 发布日期 |
| 1990/1991 | 110.618 | 千吨 | 2026-9 |
| 1989/1990 | 97.073 | 千吨 | 2026-9 |
| 1988/1989 | 97.524 | 千吨 | 2026-9 |
| 1987/1988 | 154.865 | 千吨 | 2026-9 |
| 1986/1987 | 175.634 | 千吨 | 2026-9 |
| 1985/1986 | 182.406 | 千吨 | 2026-9 |
| 1984/1985 | 135.902 | 千吨 | 2026-9 |
| 1983/1984 | 114.681 | 千吨 | 2026-9 |
| 1982/1983 | 177.891 | 千吨 | 2026-9 |
| 1981/1982 | 184.212 | 千吨 | 2026-9 |
| 1980/1981 | 166.152 | 千吨 | 2026-9 |
| 1979/1980 | 147.641 | 千吨 | 2026-9 |
| 1978/1979 | 108.36 | 千吨 | 2026-9 |
| 1977/1978 | 97.524 | 千吨 | 2026-9 |
| 1976/1977 | 106.554 | 千吨 | 2026-9 |
| 1975/1976 | 144.029 | 千吨 | 2026-9 |
| 1974/1975 | 100.233 | 千吨 | 2026-9 |
| 1973/1974 | 72.692 | 千吨 | 2026-9 |
| 1972/1973 | 109.263 | 千吨 | 2026-9 |
| 1971/1972 | 128.678 | 千吨 | 2026-9 |
| 1970/1971 | 71.337 | 千吨 | 2026-9 |
| 1969/1970 | 45.15 | 千吨 | 2026-9 |
| 1968/1969 | 35.217 | 千吨 | 2026-9 |
| 1967/1968 | 20.318 | 千吨 | 2026-9 |
| 1966/1967 | 41.99 | 千吨 | 2026-9 |
| 1965/1966 | 17.157 | 千吨 | 2026-9 |
| 1964/1965 | 13.094 | 千吨 | 2026-9 |