| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1990 | 42 | 千吨 | 2026-9 |
| 1989 | 42 | 千吨 | 2026-9 |
| 1988 | 46 | 千吨 | 2026-9 |
| 1987 | 0 | 千吨 | 2026-9 |
| 1986 | 0 | 千吨 | 2026-9 |
| 1985 | 0 | 千吨 | 2026-9 |
| 1984 | 0 | 千吨 | 2026-9 |
| 1983 | 0 | 千吨 | 2026-9 |
| 1982 | 0 | 千吨 | 2026-9 |
| 1981 | 0 | 千吨 | 2026-9 |
| 1980 | 0 | 千吨 | 2026-9 |
| 1979 | 0 | 千吨 | 2026-9 |
| 1978 | 0 | 千吨 | 2026-9 |
| 1977 | 9 | 千吨 | 2026-9 |
| 1976 | 9 | 千吨 | 2026-9 |
| 1975 | 9 | 千吨 | 2026-9 |
| 1974 | 10 | 千吨 | 2026-9 |
| 1973 | 18 | 千吨 | 2026-9 |
| 1972 | 21 | 千吨 | 2026-9 |
| 1971 | 23 | 千吨 | 2026-9 |
| 1970 | 35 | 千吨 | 2026-9 |
| 1969 | 65 | 千吨 | 2026-9 |
| 1968 | 67 | 千吨 | 2026-9 |
| 1967 | 73 | 千吨 | 2026-9 |
| 1966 | 68 | 千吨 | 2026-9 |
| 1965 | 13 | 千吨 | 2026-9 |
| 1964 | 35 | 千吨 | 2026-9 |
| 1963 | 81 | 千吨 | 2026-9 |
| 1962 | 136 | 千吨 | 2026-9 |
| 1961 | 55 | 千吨 | 2026-9 |
| 1960 | 0 | 千吨 | 2026-9 |