| 年度 | 数值 | 单位 | 发布日期 |
| 1992 | 272 | 千吨 | 2026-9 |
| 1991 | 260 | 千吨 | 2026-9 |
| 1990 | 250 | 千吨 | 2026-9 |
| 1989 | 247 | 千吨 | 2026-9 |
| 1988 | 246 | 千吨 | 2026-9 |
| 1987 | 227 | 千吨 | 2026-9 |
| 1986 | 230 | 千吨 | 2026-9 |
| 1985 | 199 | 千吨 | 2026-9 |
| 1984 | 183 | 千吨 | 2026-9 |
| 1983 | 193 | 千吨 | 2026-9 |
| 1982 | 178 | 千吨 | 2026-9 |
| 1981 | 170 | 千吨 | 2026-9 |
| 1980 | 157 | 千吨 | 2026-9 |
| 1979 | 140 | 千吨 | 2026-9 |
| 1978 | 145 | 千吨 | 2026-9 |
| 1977 | 144 | 千吨 | 2026-9 |
| 1976 | 141 | 千吨 | 2026-9 |
| 1975 | 138 | 千吨 | 2026-9 |
| 1974 | 125 | 千吨 | 2026-9 |
| 1973 | 116 | 千吨 | 2026-9 |
| 1972 | 115 | 千吨 | 2026-9 |
| 1971 | 105 | 千吨 | 2026-9 |
| 1970 | 96 | 千吨 | 2026-9 |
| 1969 | 100 | 千吨 | 2026-9 |
| 1968 | 96 | 千吨 | 2026-9 |
| 1967 | 92 | 千吨 | 2026-9 |
| 1966 | 78 | 千吨 | 2026-9 |
| 1965 | 81 | 千吨 | 2026-9 |
| 1964 | 80 | 千吨 | 2026-9 |
| 1963 | 82 | 千吨 | 2026-9 |
| 1962 | 80 | 千吨 | 2026-9 |
| 1961 | 85 | 千吨 | 2026-9 |
| 1960 | 84 | 千吨 | 2026-9 |