| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1996 | 43 | 千吨 | 2026-9 |
| 1995 | 45 | 千吨 | 2026-9 |
| 1994 | 45 | 千吨 | 2026-9 |
| 1993 | 45 | 千吨 | 2026-9 |
| 1992 | 59 | 千吨 | 2026-9 |
| 1991 | 67 | 千吨 | 2026-9 |
| 1990 | 66 | 千吨 | 2026-9 |
| 1989 | 48 | 千吨 | 2026-9 |
| 1988 | 58 | 千吨 | 2026-9 |
| 1987 | 79 | 千吨 | 2026-9 |
| 1986 | 84 | 千吨 | 2026-9 |
| 1985 | 41 | 千吨 | 2026-9 |
| 1984 | 40 | 千吨 | 2026-9 |
| 1983 | 46 | 千吨 | 2026-9 |
| 1982 | 51 | 千吨 | 2026-9 |
| 1981 | 70 | 千吨 | 2026-9 |
| 1980 | 75 | 千吨 | 2026-9 |
| 1979 | 100 | 千吨 | 2026-9 |
| 1978 | 71 | 千吨 | 2026-9 |
| 1977 | 123 | 千吨 | 2026-9 |
| 1976 | 64 | 千吨 | 2026-9 |
| 1975 | 22 | 千吨 | 2026-9 |
| 1974 | 24 | 千吨 | 2026-9 |
| 1973 | 33 | 千吨 | 2026-9 |
| 1972 | 25 | 千吨 | 2026-9 |
| 1971 | 25 | 千吨 | 2026-9 |
| 1970 | 27 | 千吨 | 2026-9 |
| 1969 | 25 | 千吨 | 2026-9 |
| 1968 | 20 | 千吨 | 2026-9 |
| 1967 | 16 | 千吨 | 2026-9 |