| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 479 | 千吨 | 2026-9 |
| 1995 | 498 | 千吨 | 2026-9 |
| 1994 | 498 | 千吨 | 2026-9 |
| 1993 | 478 | 千吨 | 2026-9 |
| 1992 | 461 | 千吨 | 2026-9 |
| 1991 | 541 | 千吨 | 2026-9 |
| 1990 | 487 | 千吨 | 2026-9 |
| 1989 | 508 | 千吨 | 2026-9 |
| 1988 | 582 | 千吨 | 2026-9 |
| 1987 | 532 | 千吨 | 2026-9 |
| 1986 | 513 | 千吨 | 2026-9 |
| 1985 | 490 | 千吨 | 2026-9 |
| 1984 | 543 | 千吨 | 2026-9 |
| 1983 | 490 | 千吨 | 2026-9 |
| 1982 | 500 | 千吨 | 2026-9 |
| 1981 | 486 | 千吨 | 2026-9 |
| 1980 | 519 | 千吨 | 2026-9 |
| 1979 | 530 | 千吨 | 2026-9 |
| 1978 | 496 | 千吨 | 2026-9 |
| 1977 | 505 | 千吨 | 2026-9 |
| 1976 | 496 | 千吨 | 2026-9 |
| 1975 | 495 | 千吨 | 2026-9 |
| 1974 | 491 | 千吨 | 2026-9 |
| 1973 | 458 | 千吨 | 2026-9 |
| 1972 | 443 | 千吨 | 2026-9 |
| 1971 | 425 | 千吨 | 2026-9 |
| 1970 | 458 | 千吨 | 2026-9 |
| 1969 | 468 | 千吨 | 2026-9 |
| 1968 | 449 | 千吨 | 2026-9 |
| 1967 | 464 | 千吨 | 2026-9 |
| 1966 | 436 | 千吨 | 2026-9 |
| 1965 | 434 | 千吨 | 2026-9 |
| 1964 | 413 | 千吨 | 2026-9 |