| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 1795 | 千吨 | 2026-9 |
| 1995 | 1669 | 千吨 | 2026-9 |
| 1994 | 1485 | 千吨 | 2026-9 |
| 1993 | 1453 | 千吨 | 2026-9 |
| 1992 | 1490 | 千吨 | 2026-9 |
| 1991 | 1542 | 千吨 | 2026-9 |
| 1990 | 1519 | 千吨 | 2026-9 |
| 1989 | 1420 | 千吨 | 2026-9 |
| 1988 | 1346 | 千吨 | 2026-9 |
| 1987 | 1253 | 千吨 | 2026-9 |
| 1986 | 1200 | 千吨 | 2026-9 |
| 1985 | 1120 | 千吨 | 2026-9 |
| 1984 | 961 | 千吨 | 2026-9 |
| 1983 | 1020 | 千吨 | 2026-9 |
| 1982 | 1063 | 千吨 | 2026-9 |
| 1981 | 1071 | 千吨 | 2026-9 |
| 1980 | 1031 | 千吨 | 2026-9 |
| 1979 | 549 | 千吨 | 2026-9 |
| 1978 | 569 | 千吨 | 2026-9 |
| 1977 | 560 | 千吨 | 2026-9 |
| 1976 | 562 | 千吨 | 2026-9 |
| 1975 | 531 | 千吨 | 2026-9 |
| 1974 | 484 | 千吨 | 2026-9 |
| 1973 | 476 | 千吨 | 2026-9 |
| 1972 | 460 | 千吨 | 2026-9 |
| 1971 | 446 | 千吨 | 2026-9 |
| 1970 | 472 | 千吨 | 2026-9 |
| 1969 | 459 | 千吨 | 2026-9 |
| 1968 | 417 | 千吨 | 2026-9 |
| 1967 | 359 | 千吨 | 2026-9 |
| 1966 | 368 | 千吨 | 2026-9 |
| 1965 | 377 | 千吨 | 2026-9 |
| 1964 | 362 | 千吨 | 2026-9 |