| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 480 | 千吨 | 2026-9 |
| 1995 | 486 | 千吨 | 2026-9 |
| 1994 | 461 | 千吨 | 2026-9 |
| 1993 | 480 | 千吨 | 2026-9 |
| 1992 | 474 | 千吨 | 2026-9 |
| 1991 | 555 | 千吨 | 2026-9 |
| 1990 | 389 | 千吨 | 2026-9 |
| 1989 | 438 | 千吨 | 2026-9 |
| 1988 | 390 | 千吨 | 2026-9 |
| 1987 | 464 | 千吨 | 2026-9 |
| 1986 | 567 | 千吨 | 2026-9 |
| 1985 | 515 | 千吨 | 2026-9 |
| 1984 | 572 | 千吨 | 2026-9 |
| 1983 | 627 | 千吨 | 2026-9 |
| 1982 | 556 | 千吨 | 2026-9 |
| 1981 | 545 | 千吨 | 2026-9 |
| 1980 | 578 | 千吨 | 2026-9 |
| 1979 | 568 | 千吨 | 2026-9 |
| 1978 | 564 | 千吨 | 2026-9 |
| 1977 | 535 | 千吨 | 2026-9 |
| 1976 | 544 | 千吨 | 2026-9 |
| 1975 | 521 | 千吨 | 2026-9 |
| 1974 | 511 | 千吨 | 2026-9 |
| 1973 | 513 | 千吨 | 2026-9 |
| 1972 | 498 | 千吨 | 2026-9 |
| 1971 | 470 | 千吨 | 2026-9 |
| 1970 | 505 | 千吨 | 2026-9 |
| 1969 | 522 | 千吨 | 2026-9 |
| 1968 | 537 | 千吨 | 2026-9 |
| 1967 | 517 | 千吨 | 2026-9 |
| 1966 | 501 | 千吨 | 2026-9 |
| 1965 | 501 | 千吨 | 2026-9 |
| 1964 | 491 | 千吨 | 2026-9 |