| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1992 | 35 | 千吨 | 2026-9 |
| 1991 | 19 | 千吨 | 2026-9 |
| 1990 | 25 | 千吨 | 2026-9 |
| 1989 | 28 | 千吨 | 2026-9 |
| 1988 | 32 | 千吨 | 2026-9 |
| 1987 | 25 | 千吨 | 2026-9 |
| 1986 | 30 | 千吨 | 2026-9 |
| 1985 | 48 | 千吨 | 2026-9 |
| 1984 | 48 | 千吨 | 2026-9 |
| 1983 | 42 | 千吨 | 2026-9 |
| 1982 | 54 | 千吨 | 2026-9 |
| 1981 | 34 | 千吨 | 2026-9 |
| 1980 | 66 | 千吨 | 2026-9 |
| 1979 | 52 | 千吨 | 2026-9 |
| 1978 | 69 | 千吨 | 2026-9 |
| 1977 | 66 | 千吨 | 2026-9 |
| 1976 | 66 | 千吨 | 2026-9 |
| 1975 | 42 | 千吨 | 2026-9 |
| 1974 | 39 | 千吨 | 2026-9 |
| 1973 | 70 | 千吨 | 2026-9 |
| 1972 | 56 | 千吨 | 2026-9 |
| 1971 | 55 | 千吨 | 2026-9 |
| 1970 | 60 | 千吨 | 2026-9 |
| 1969 | 87 | 千吨 | 2026-9 |
| 1968 | 88 | 千吨 | 2026-9 |
| 1967 | 84 | 千吨 | 2026-9 |
| 1966 | 85 | 千吨 | 2026-9 |
| 1965 | 74 | 千吨 | 2026-9 |
| 1964 | 75 | 千吨 | 2026-9 |
| 1963 | 78 | 千吨 | 2026-9 |
| 1962 | 72 | 千吨 | 2026-9 |
| 1961 | 39 | 千吨 | 2026-9 |
| 1960 | 16 | 千吨 | 2026-9 |