| 年度 | 数值 | 单位 | 发布日期 |
| 1996 | 2400 | 千吨 | 2026-9 |
| 1995 | 2523 | 千吨 | 2026-9 |
| 1994 | 2488 | 千吨 | 2026-9 |
| 1993 | 2742 | 千吨 | 2026-9 |
| 1992 | 2515 | 千吨 | 2026-9 |
| 1991 | 2543 | 千吨 | 2026-9 |
| 1990 | 2545 | 千吨 | 2026-9 |
| 1989 | 2368 | 千吨 | 2026-9 |
| 1988 | 2290 | 千吨 | 2026-9 |
| 1987 | 2760 | 千吨 | 2026-9 |
| 1986 | 2815 | 千吨 | 2026-9 |
| 1985 | 2982 | 千吨 | 2026-9 |
| 1984 | 2870 | 千吨 | 2026-9 |
| 1983 | 2713 | 千吨 | 2026-9 |
| 1982 | 2471 | 千吨 | 2026-9 |
| 1981 | 2201 | 千吨 | 2026-9 |
| 1980 | 2092 | 千吨 | 2026-9 |
| 1979 | 2068 | 千吨 | 2026-9 |
| 1978 | 1689 | 千吨 | 2026-9 |
| 1977 | 1690 | 千吨 | 2026-9 |
| 1976 | 1616 | 千吨 | 2026-9 |
| 1975 | 1588 | 千吨 | 2026-9 |
| 1974 | 1712 | 千吨 | 2026-9 |
| 1973 | 1694 | 千吨 | 2026-9 |
| 1972 | 1594 | 千吨 | 2026-9 |
| 1971 | 1454 | 千吨 | 2026-9 |
| 1970 | 1472 | 千吨 | 2026-9 |
| 1969 | 1350 | 千吨 | 2026-9 |
| 1968 | 1285 | 千吨 | 2026-9 |
| 1967 | 1148 | 千吨 | 2026-9 |
| 1966 | 981 | 千吨 | 2026-9 |
| 1965 | 787 | 千吨 | 2026-9 |
| 1964 | 647 | 千吨 | 2026-9 |