| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 546 | 千吨 | 2026-9 |
| 1995 | 540 | 千吨 | 2026-9 |
| 1994 | 508 | 千吨 | 2026-9 |
| 1993 | 503 | 千吨 | 2026-9 |
| 1992 | 500 | 千吨 | 2026-9 |
| 1991 | 472 | 千吨 | 2026-9 |
| 1990 | 438 | 千吨 | 2026-9 |
| 1989 | 425 | 千吨 | 2026-9 |
| 1988 | 396 | 千吨 | 2026-9 |
| 1987 | 383 | 千吨 | 2026-9 |
| 1986 | 376 | 千吨 | 2026-9 |
| 1985 | 356 | 千吨 | 2026-9 |
| 1984 | 339 | 千吨 | 2026-9 |
| 1983 | 326 | 千吨 | 2026-9 |
| 1982 | 317 | 千吨 | 2026-9 |
| 1981 | 308 | 千吨 | 2026-9 |
| 1980 | 275 | 千吨 | 2026-9 |
| 1979 | 286 | 千吨 | 2026-9 |
| 1978 | 249 | 千吨 | 2026-9 |
| 1977 | 255 | 千吨 | 2026-9 |
| 1976 | 248 | 千吨 | 2026-9 |
| 1975 | 226 | 千吨 | 2026-9 |
| 1974 | 231 | 千吨 | 2026-9 |
| 1973 | 204 | 千吨 | 2026-9 |
| 1972 | 190 | 千吨 | 2026-9 |
| 1971 | 180 | 千吨 | 2026-9 |
| 1970 | 173 | 千吨 | 2026-9 |
| 1969 | 164 | 千吨 | 2026-9 |
| 1968 | 153 | 千吨 | 2026-9 |
| 1967 | 134 | 千吨 | 2026-9 |
| 1966 | 135 | 千吨 | 2026-9 |
| 1965 | 120 | 千吨 | 2026-9 |
| 1964 | 106 | 千吨 | 2026-9 |