| 年度 | 数值 | 单位 | 发布日期 |
| 1992 | 151 | 千吨 | 2026-9 |
| 1991 | 115 | 千吨 | 2026-9 |
| 1990 | 135 | 千吨 | 2026-9 |
| 1989 | 160 | 千吨 | 2026-9 |
| 1988 | 168 | 千吨 | 2026-9 |
| 1987 | 171 | 千吨 | 2026-9 |
| 1986 | 141 | 千吨 | 2026-9 |
| 1985 | 138 | 千吨 | 2026-9 |
| 1984 | 136 | 千吨 | 2026-9 |
| 1983 | 136 | 千吨 | 2026-9 |
| 1982 | 107 | 千吨 | 2026-9 |
| 1981 | 49 | 千吨 | 2026-9 |
| 1980 | 110 | 千吨 | 2026-9 |
| 1979 | 108 | 千吨 | 2026-9 |
| 1978 | 121 | 千吨 | 2026-9 |
| 1977 | 92 | 千吨 | 2026-9 |
| 1976 | 79 | 千吨 | 2026-9 |
| 1975 | 37 | 千吨 | 2026-9 |
| 1974 | 26 | 千吨 | 2026-9 |
| 1973 | 63 | 千吨 | 2026-9 |
| 1972 | 46 | 千吨 | 2026-9 |
| 1971 | 52 | 千吨 | 2026-9 |
| 1970 | 69 | 千吨 | 2026-9 |
| 1969 | 56 | 千吨 | 2026-9 |
| 1968 | 52 | 千吨 | 2026-9 |
| 1967 | 40 | 千吨 | 2026-9 |
| 1966 | 33 | 千吨 | 2026-9 |
| 1965 | 33 | 千吨 | 2026-9 |
| 1964 | 23 | 千吨 | 2026-9 |
| 1963 | 32 | 千吨 | 2026-9 |
| 1962 | 18 | 千吨 | 2026-9 |
| 1961 | 13 | 千吨 | 2026-9 |
| 1960 | 0 | 千吨 | 2026-9 |