| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 950 | 千吨 | 2026-9 |
| 1995 | 942 | 千吨 | 2026-9 |
| 1994 | 913 | 千吨 | 2026-9 |
| 1993 | 885 | 千吨 | 2026-9 |
| 1992 | 890 | 千吨 | 2026-9 |
| 1991 | 885 | 千吨 | 2026-9 |
| 1990 | 811 | 千吨 | 2026-9 |
| 1989 | 760 | 千吨 | 2026-9 |
| 1988 | 737 | 千吨 | 2026-9 |
| 1987 | 704 | 千吨 | 2026-9 |
| 1986 | 694 | 千吨 | 2026-9 |
| 1985 | 684 | 千吨 | 2026-9 |
| 1984 | 661 | 千吨 | 2026-9 |
| 1983 | 656 | 千吨 | 2026-9 |
| 1982 | 645 | 千吨 | 2026-9 |
| 1981 | 610 | 千吨 | 2026-9 |
| 1980 | 615 | 千吨 | 2026-9 |
| 1979 | 601 | 千吨 | 2026-9 |
| 1978 | 583 | 千吨 | 2026-9 |
| 1977 | 553 | 千吨 | 2026-9 |
| 1976 | 537 | 千吨 | 2026-9 |
| 1975 | 501 | 千吨 | 2026-9 |
| 1974 | 518 | 千吨 | 2026-9 |
| 1973 | 501 | 千吨 | 2026-9 |
| 1972 | 506 | 千吨 | 2026-9 |
| 1971 | 478 | 千吨 | 2026-9 |
| 1970 | 466 | 千吨 | 2026-9 |
| 1969 | 465 | 千吨 | 2026-9 |
| 1968 | 469 | 千吨 | 2026-9 |
| 1967 | 470 | 千吨 | 2026-9 |
| 1966 | 488 | 千吨 | 2026-9 |
| 1965 | 447 | 千吨 | 2026-9 |
| 1964 | 397 | 千吨 | 2026-9 |