| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 821 | 千吨 | 2026-9 |
| 1995 | 829 | 千吨 | 2026-9 |
| 1994 | 815 | 千吨 | 2026-9 |
| 1993 | 827 | 千吨 | 2026-9 |
| 1992 | 829 | 千吨 | 2026-9 |
| 1991 | 858 | 千吨 | 2026-9 |
| 1990 | 725 | 千吨 | 2026-9 |
| 1989 | 706 | 千吨 | 2026-9 |
| 1988 | 720 | 千吨 | 2026-9 |
| 1987 | 770 | 千吨 | 2026-9 |
| 1986 | 674 | 千吨 | 2026-9 |
| 1985 | 620 | 千吨 | 2026-9 |
| 1984 | 598 | 千吨 | 2026-9 |
| 1983 | 684 | 千吨 | 2026-9 |
| 1982 | 750 | 千吨 | 2026-9 |
| 1981 | 700 | 千吨 | 2026-9 |
| 1980 | 674 | 千吨 | 2026-9 |
| 1979 | 704 | 千吨 | 2026-9 |
| 1978 | 517 | 千吨 | 2026-9 |
| 1977 | 498 | 千吨 | 2026-9 |
| 1976 | 487 | 千吨 | 2026-9 |
| 1975 | 472 | 千吨 | 2026-9 |
| 1974 | 465 | 千吨 | 2026-9 |
| 1973 | 450 | 千吨 | 2026-9 |
| 1972 | 450 | 千吨 | 2026-9 |
| 1971 | 446 | 千吨 | 2026-9 |
| 1970 | 480 | 千吨 | 2026-9 |
| 1969 | 469 | 千吨 | 2026-9 |
| 1968 | 432 | 千吨 | 2026-9 |
| 1967 | 463 | 千吨 | 2026-9 |
| 1966 | 508 | 千吨 | 2026-9 |
| 1965 | 485 | 千吨 | 2026-9 |
| 1964 | 0 | 千吨 | 2026-9 |