| 年度 | 数值 | 单位 | 发布日期 |
| 1992 | 296 | 千吨 | 2026-9 |
| 1991 | 307 | 千吨 | 2026-9 |
| 1990 | 273 | 千吨 | 2026-9 |
| 1989 | 265 | 千吨 | 2026-9 |
| 1988 | 256 | 千吨 | 2026-9 |
| 1987 | 294 | 千吨 | 2026-9 |
| 1986 | 254 | 千吨 | 2026-9 |
| 1985 | 255 | 千吨 | 2026-9 |
| 1984 | 254 | 千吨 | 2026-9 |
| 1983 | 252 | 千吨 | 2026-9 |
| 1982 | 261 | 千吨 | 2026-9 |
| 1981 | 280 | 千吨 | 2026-9 |
| 1980 | 261 | 千吨 | 2026-9 |
| 1979 | 269 | 千吨 | 2026-9 |
| 1978 | 265 | 千吨 | 2026-9 |
| 1977 | 295 | 千吨 | 2026-9 |
| 1976 | 298 | 千吨 | 2026-9 |
| 1975 | 282 | 千吨 | 2026-9 |
| 1974 | 268 | 千吨 | 2026-9 |
| 1973 | 251 | 千吨 | 2026-9 |
| 1972 | 240 | 千吨 | 2026-9 |
| 1971 | 250 | 千吨 | 2026-9 |
| 1970 | 257 | 千吨 | 2026-9 |
| 1969 | 251 | 千吨 | 2026-9 |
| 1968 | 253 | 千吨 | 2026-9 |
| 1967 | 254 | 千吨 | 2026-9 |
| 1966 | 240 | 千吨 | 2026-9 |
| 1965 | 220 | 千吨 | 2026-9 |
| 1964 | 217 | 千吨 | 2026-9 |
| 1963 | 269 | 千吨 | 2026-9 |
| 1962 | 251 | 千吨 | 2026-9 |
| 1961 | 220 | 千吨 | 2026-9 |
| 1960 | 203 | 千吨 | 2026-9 |