| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1992 | 428 | 千吨 | 2026-9 |
| 1991 | 450 | 千吨 | 2026-9 |
| 1990 | 396 | 千吨 | 2026-9 |
| 1989 | 355 | 千吨 | 2026-9 |
| 1988 | 319 | 千吨 | 2026-9 |
| 1987 | 306 | 千吨 | 2026-9 |
| 1986 | 323 | 千吨 | 2026-9 |
| 1985 | 320 | 千吨 | 2026-9 |
| 1984 | 279 | 千吨 | 2026-9 |
| 1983 | 283 | 千吨 | 2026-9 |
| 1982 | 260 | 千吨 | 2026-9 |
| 1981 | 246 | 千吨 | 2026-9 |
| 1980 | 263 | 千吨 | 2026-9 |
| 1979 | 244 | 千吨 | 2026-9 |
| 1978 | 272 | 千吨 | 2026-9 |
| 1977 | 219 | 千吨 | 2026-9 |
| 1976 | 166 | 千吨 | 2026-9 |
| 1975 | 167 | 千吨 | 2026-9 |
| 1974 | 127 | 千吨 | 2026-9 |
| 1973 | 181 | 千吨 | 2026-9 |
| 1972 | 169 | 千吨 | 2026-9 |
| 1971 | 79 | 千吨 | 2026-9 |
| 1970 | 83 | 千吨 | 2026-9 |
| 1969 | 85 | 千吨 | 2026-9 |
| 1968 | 40 | 千吨 | 2026-9 |
| 1967 | 41 | 千吨 | 2026-9 |
| 1966 | 42 | 千吨 | 2026-9 |
| 1965 | 66 | 千吨 | 2026-9 |
| 1964 | 83 | 千吨 | 2026-9 |
| 1963 | 19 | 千吨 | 2026-9 |
| 1962 | 12 | 千吨 | 2026-9 |
| 1961 | 13 | 千吨 | 2026-9 |
| 1960 | 0 | 千吨 | 2026-9 |