| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 143 | 千吨 | 2026-9 |
| 1995 | 140 | 千吨 | 2026-9 |
| 1994 | 140 | 千吨 | 2026-9 |
| 1993 | 139 | 千吨 | 2026-9 |
| 1992 | 137 | 千吨 | 2026-9 |
| 1991 | 179 | 千吨 | 2026-9 |
| 1990 | 10 | 千吨 | 2026-9 |
| 1989 | 10 | 千吨 | 2026-9 |
| 1988 | 25 | 千吨 | 2026-9 |
| 1987 | 127 | 千吨 | 2026-9 |
| 1986 | 122 | 千吨 | 2026-9 |
| 1985 | 128 | 千吨 | 2026-9 |
| 1984 | 115 | 千吨 | 2026-9 |
| 1983 | 118 | 千吨 | 2026-9 |
| 1982 | 117 | 千吨 | 2026-9 |
| 1981 | 116 | 千吨 | 2026-9 |
| 1980 | 115 | 千吨 | 2026-9 |
| 1979 | 118 | 千吨 | 2026-9 |
| 1978 | 116 | 千吨 | 2026-9 |
| 1977 | 114 | 千吨 | 2026-9 |
| 1976 | 145 | 千吨 | 2026-9 |
| 1975 | 140 | 千吨 | 2026-9 |
| 1974 | 126 | 千吨 | 2026-9 |
| 1973 | 129 | 千吨 | 2026-9 |
| 1972 | 127 | 千吨 | 2026-9 |
| 1971 | 120 | 千吨 | 2026-9 |
| 1970 | 126 | 千吨 | 2026-9 |
| 1969 | 133 | 千吨 | 2026-9 |
| 1968 | 129 | 千吨 | 2026-9 |
| 1967 | 141 | 千吨 | 2026-9 |
| 1966 | 136 | 千吨 | 2026-9 |
| 1965 | 141 | 千吨 | 2026-9 |
| 1964 | 0 | 千吨 | 2026-9 |