| 年度 | 数值 | 单位 | 发布日期 |
| 1990 | 116 | 千吨 | 2026-9 |
| 1989 | 195 | 千吨 | 2026-9 |
| 1988 | 217 | 千吨 | 2026-9 |
| 1987 | 327 | 千吨 | 2026-9 |
| 1986 | 329 | 千吨 | 2026-9 |
| 1985 | 400 | 千吨 | 2026-9 |
| 1984 | 411 | 千吨 | 2026-9 |
| 1983 | 405 | 千吨 | 2026-9 |
| 1982 | 389 | 千吨 | 2026-9 |
| 1981 | 370 | 千吨 | 2026-9 |
| 1980 | 379 | 千吨 | 2026-9 |
| 1979 | 405 | 千吨 | 2026-9 |
| 1978 | 394 | 千吨 | 2026-9 |
| 1977 | 395 | 千吨 | 2026-9 |
| 1976 | 438 | 千吨 | 2026-9 |
| 1975 | 477 | 千吨 | 2026-9 |
| 1974 | 387 | 千吨 | 2026-9 |
| 1973 | 360 | 千吨 | 2026-9 |
| 1972 | 328 | 千吨 | 2026-9 |
| 1971 | 316 | 千吨 | 2026-9 |
| 1970 | 336 | 千吨 | 2026-9 |
| 1969 | 353 | 千吨 | 2026-9 |
| 1968 | 348 | 千吨 | 2026-9 |
| 1967 | 343 | 千吨 | 2026-9 |
| 1966 | 318 | 千吨 | 2026-9 |
| 1965 | 234 | 千吨 | 2026-9 |
| 1964 | 239 | 千吨 | 2026-9 |
| 1963 | 274 | 千吨 | 2026-9 |
| 1962 | 344 | 千吨 | 2026-9 |
| 1961 | 264 | 千吨 | 2026-9 |
| 1960 | 189 | 千吨 | 2026-9 |