| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 853 | 千吨 | 2026-9 |
| 1995 | 954 | 千吨 | 2026-9 |
| 1994 | 773 | 千吨 | 2026-9 |
| 1993 | 738 | 千吨 | 2026-9 |
| 1992 | 922 | 千吨 | 2026-9 |
| 1991 | 850 | 千吨 | 2026-9 |
| 1990 | 653 | 千吨 | 2026-9 |
| 1989 | 679 | 千吨 | 2026-9 |
| 1988 | 643 | 千吨 | 2026-9 |
| 1987 | 443 | 千吨 | 2026-9 |
| 1986 | 78 | 千吨 | 2026-9 |
| 1985 | 93 | 千吨 | 2026-9 |
| 1984 | 154 | 千吨 | 2026-9 |
| 1983 | 228 | 千吨 | 2026-9 |
| 1982 | 202 | 千吨 | 2026-9 |
| 1981 | 259 | 千吨 | 2026-9 |
| 1980 | 220 | 千吨 | 2026-9 |
| 1979 | 152 | 千吨 | 2026-9 |
| 1978 | 240 | 千吨 | 2026-9 |
| 1977 | 278 | 千吨 | 2026-9 |
| 1976 | 290 | 千吨 | 2026-9 |
| 1975 | 0 | 千吨 | 2026-9 |
| 1974 | 0 | 千吨 | 2026-9 |
| 1973 | 0 | 千吨 | 2026-9 |
| 1972 | 0 | 千吨 | 2026-9 |
| 1971 | 0 | 千吨 | 2026-9 |
| 1970 | 0 | 千吨 | 2026-9 |
| 1969 | 0 | 千吨 | 2026-9 |
| 1968 | 0 | 千吨 | 2026-9 |
| 1967 | 0 | 千吨 | 2026-9 |
| 1966 | 0 | 千吨 | 2026-9 |
| 1965 | 0 | 千吨 | 2026-9 |
| 1964 | 0 | 千吨 | 2026-9 |