| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1987 | 318 | 千吨 | 2026-9 |
| 1986 | 261 | 千吨 | 2026-9 |
| 1985 | 246 | 千吨 | 2026-9 |
| 1984 | 120 | 千吨 | 2026-9 |
| 1983 | 100 | 千吨 | 2026-9 |
| 1982 | 115 | 千吨 | 2026-9 |
| 1981 | 115 | 千吨 | 2026-9 |
| 1980 | 120 | 千吨 | 2026-9 |
| 1979 | 125 | 千吨 | 2026-9 |
| 1978 | 48 | 千吨 | 2026-9 |
| 1977 | 69 | 千吨 | 2026-9 |
| 1976 | 64 | 千吨 | 2026-9 |
| 1975 | 46 | 千吨 | 2026-9 |
| 1974 | 68 | 千吨 | 2026-9 |
| 1973 | 63 | 千吨 | 2026-9 |
| 1972 | 48 | 千吨 | 2026-9 |
| 1971 | 26 | 千吨 | 2026-9 |
| 1970 | 16 | 千吨 | 2026-9 |
| 1969 | 8 | 千吨 | 2026-9 |
| 1968 | 2 | 千吨 | 2026-9 |
| 1967 | 4 | 千吨 | 2026-9 |
| 1966 | 64 | 千吨 | 2026-9 |
| 1965 | 218 | 千吨 | 2026-9 |
| 1964 | 88 | 千吨 | 2026-9 |
| 1963 | 10 | 千吨 | 2026-9 |
| 1962 | 46 | 千吨 | 2026-9 |
| 1961 | 28 | 千吨 | 2026-9 |
| 1960 | 0 | 千吨 | 2026-9 |