| 年度 | 数值 | 单位 | 发布日期 |
| 1996 | 100 | 千吨 | 2026-9 |
| 1995 | 100 | 千吨 | 2026-9 |
| 1994 | 100 | 千吨 | 2026-9 |
| 1993 | 150 | 千吨 | 2026-9 |
| 1992 | 170 | 千吨 | 2026-9 |
| 1991 | 270 | 千吨 | 2026-9 |
| 1990 | 270 | 千吨 | 2026-9 |
| 1989 | 255 | 千吨 | 2026-9 |
| 1988 | 250 | 千吨 | 2026-9 |
| 1987 | 260 | 千吨 | 2026-9 |
| 1986 | 266 | 千吨 | 2026-9 |
| 1985 | 300 | 千吨 | 2026-9 |
| 1984 | 372 | 千吨 | 2026-9 |
| 1983 | 288 | 千吨 | 2026-9 |
| 1982 | 312 | 千吨 | 2026-9 |
| 1981 | 323 | 千吨 | 2026-9 |
| 1980 | 316 | 千吨 | 2026-9 |
| 1979 | 395 | 千吨 | 2026-9 |
| 1978 | 594 | 千吨 | 2026-9 |
| 1977 | 621 | 千吨 | 2026-9 |
| 1976 | 578 | 千吨 | 2026-9 |
| 1975 | 682 | 千吨 | 2026-9 |
| 1974 | 726 | 千吨 | 2026-9 |
| 1973 | 812 | 千吨 | 2026-9 |
| 1972 | 814 | 千吨 | 2026-9 |
| 1971 | 806 | 千吨 | 2026-9 |
| 1970 | 903 | 千吨 | 2026-9 |
| 1969 | 886 | 千吨 | 2026-9 |
| 1968 | 847 | 千吨 | 2026-9 |
| 1967 | 870 | 千吨 | 2026-9 |
| 1966 | 1481 | 千吨 | 2026-9 |
| 1965 | 1281 | 千吨 | 2026-9 |
| 1964 | 1090 | 千吨 | 2026-9 |