| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 43.796 | 千吨 | 2026-9 |
| 1989/1990 | 42.893 | 千吨 | 2026-9 |
| 1988/1989 | 13.545 | 千吨 | 2026-9 |
| 1987/1988 | 13.094 | 千吨 | 2026-9 |
| 1986/1987 | 4.967 | 千吨 | 2026-9 |
| 1985/1986 | 0.452 | 千吨 | 2026-9 |
| 1981/1982 | 2.709 | 千吨 | 2026-9 |
| 1980/1981 | 1.355 | 千吨 | 2026-9 |
| 1979/1980 | 2.709 | 千吨 | 2026-9 |
| 1978/1979 | 2.258 | 千吨 | 2026-9 |
| 1977/1978 | 1.806 | 千吨 | 2026-9 |
| 1976/1977 | 1.806 | 千吨 | 2026-9 |
| 1975/1976 | 9.03 | 千吨 | 2026-9 |
| 1974/1975 | 0.903 | 千吨 | 2026-9 |
| 1973/1974 | 1.355 | 千吨 | 2026-9 |
| 1972/1973 | 2.709 | 千吨 | 2026-9 |
| 1971/1972 | 6.321 | 千吨 | 2026-9 |
| 1970/1971 | 4.064 | 千吨 | 2026-9 |
| 1969/1970 | 1.355 | 千吨 | 2026-9 |
| 1968/1969 | 2.709 | 千吨 | 2026-9 |
| 1967/1968 | 1.806 | 千吨 | 2026-9 |
| 1966/1967 | 2.258 | 千吨 | 2026-9 |
| 1965/1966 | 2.709 | 千吨 | 2026-9 |
| 1964/1965 | 2.258 | 千吨 | 2026-9 |