| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 914 | 千吨 | 2026-9 |
| 1995 | 977 | 千吨 | 2026-9 |
| 1994 | 422 | 千吨 | 2026-9 |
| 1993 | 816 | 千吨 | 2026-9 |
| 1992 | 694 | 千吨 | 2026-9 |
| 1991 | 564 | 千吨 | 2026-9 |
| 1990 | 478 | 千吨 | 2026-9 |
| 1989 | 514 | 千吨 | 2026-9 |
| 1988 | 429 | 千吨 | 2026-9 |
| 1987 | 269 | 千吨 | 2026-9 |
| 1986 | 275 | 千吨 | 2026-9 |
| 1985 | 333 | 千吨 | 2026-9 |
| 1984 | 290 | 千吨 | 2026-9 |
| 1983 | 280 | 千吨 | 2026-9 |
| 1982 | 243 | 千吨 | 2026-9 |
| 1981 | 257 | 千吨 | 2026-9 |
| 1980 | 221 | 千吨 | 2026-9 |
| 1979 | 199 | 千吨 | 2026-9 |
| 1978 | 169 | 千吨 | 2026-9 |
| 1977 | 172 | 千吨 | 2026-9 |
| 1976 | 157 | 千吨 | 2026-9 |
| 1975 | 133 | 千吨 | 2026-9 |
| 1974 | 96 | 千吨 | 2026-9 |
| 1973 | 131 | 千吨 | 2026-9 |
| 1972 | 71 | 千吨 | 2026-9 |
| 1971 | 23 | 千吨 | 2026-9 |
| 1970 | 26 | 千吨 | 2026-9 |
| 1969 | 0 | 千吨 | 2026-9 |
| 1968 | 0 | 千吨 | 2026-9 |
| 1967 | 0 | 千吨 | 2026-9 |
| 1966 | 0 | 千吨 | 2026-9 |
| 1965 | 0 | 千吨 | 2026-9 |
| 1964 | 0 | 千吨 | 2026-9 |