| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 624 | 千吨 | 2026-9 |
| 1995 | 568 | 千吨 | 2026-9 |
| 1994 | 521 | 千吨 | 2026-9 |
| 1993 | 487 | 千吨 | 2026-9 |
| 1992 | 478 | 千吨 | 2026-9 |
| 1991 | 454 | 千吨 | 2026-9 |
| 1990 | 433 | 千吨 | 2026-9 |
| 1989 | 406 | 千吨 | 2026-9 |
| 1988 | 396 | 千吨 | 2026-9 |
| 1987 | 390 | 千吨 | 2026-9 |
| 1986 | 360 | 千吨 | 2026-9 |
| 1985 | 348 | 千吨 | 2026-9 |
| 1984 | 337 | 千吨 | 2026-9 |
| 1983 | 330 | 千吨 | 2026-9 |
| 1982 | 352 | 千吨 | 2026-9 |
| 1981 | 351 | 千吨 | 2026-9 |
| 1980 | 317 | 千吨 | 2026-9 |
| 1979 | 303 | 千吨 | 2026-9 |
| 1978 | 300 | 千吨 | 2026-9 |
| 1977 | 299 | 千吨 | 2026-9 |
| 1976 | 292 | 千吨 | 2026-9 |
| 1975 | 280 | 千吨 | 2026-9 |
| 1974 | 267 | 千吨 | 2026-9 |
| 1973 | 286 | 千吨 | 2026-9 |
| 1972 | 271 | 千吨 | 2026-9 |
| 1971 | 261 | 千吨 | 2026-9 |
| 1970 | 244 | 千吨 | 2026-9 |
| 1969 | 207 | 千吨 | 2026-9 |
| 1968 | 183 | 千吨 | 2026-9 |
| 1967 | 171 | 千吨 | 2026-9 |
| 1966 | 146 | 千吨 | 2026-9 |
| 1965 | 117 | 千吨 | 2026-9 |
| 1964 | 92 | 千吨 | 2026-9 |