| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 345 | 千吨 | 2026-9 |
| 1997 | 371 | 千吨 | 2026-9 |
| 1996 | 355 | 千吨 | 2026-9 |
| 1995 | 403 | 千吨 | 2026-9 |
| 1994 | 477 | 千吨 | 2026-9 |
| 1993 | 509 | 千吨 | 2026-9 |
| 1992 | 537 | 千吨 | 2026-9 |
| 1991 | 751 | 千吨 | 2026-9 |
| 1990 | 734 | 千吨 | 2026-9 |
| 1989 | 937 | 千吨 | 2026-9 |
| 1988 | 851 | 千吨 | 2026-9 |
| 1987 | 938 | 千吨 | 2026-9 |
| 1986 | 829 | 千吨 | 2026-9 |
| 1985 | 909 | 千吨 | 2026-9 |
| 1984 | 947 | 千吨 | 2026-9 |
| 1983 | 966 | 千吨 | 2026-9 |
| 1982 | 864 | 千吨 | 2026-9 |
| 1981 | 846 | 千吨 | 2026-9 |
| 1980 | 849 | 千吨 | 2026-9 |
| 1979 | 840 | 千吨 | 2026-9 |
| 1978 | 837 | 千吨 | 2026-9 |
| 1977 | 860 | 千吨 | 2026-9 |
| 1976 | 771 | 千吨 | 2026-9 |
| 1975 | 824 | 千吨 | 2026-9 |
| 1974 | 792 | 千吨 | 2026-9 |
| 1973 | 721 | 千吨 | 2026-9 |
| 1972 | 378 | 千吨 | 2026-9 |
| 1971 | 333 | 千吨 | 2026-9 |
| 1970 | 334 | 千吨 | 2026-9 |
| 1969 | 303 | 千吨 | 2026-9 |
| 1968 | 324 | 千吨 | 2026-9 |
| 1967 | 304 | 千吨 | 2026-9 |
| 1966 | 284 | 千吨 | 2026-9 |
| 1965 | 295 | 千吨 | 2026-9 |
| 1964 | 284 | 千吨 | 2026-9 |
| 1963 | 275 | 千吨 | 2026-9 |
| 1962 | 268 | 千吨 | 2026-9 |
| 1961 | 274 | 千吨 | 2026-9 |
| 1960 | 249 | 千吨 | 2026-9 |