| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1992 | 495 | 千吨 | 2026-9 |
| 1991 | 402 | 千吨 | 2026-9 |
| 1990 | 381 | 千吨 | 2026-9 |
| 1989 | 438 | 千吨 | 2026-9 |
| 1988 | 366 | 千吨 | 2026-9 |
| 1987 | 431 | 千吨 | 2026-9 |
| 1986 | 414 | 千吨 | 2026-9 |
| 1985 | 316 | 千吨 | 2026-9 |
| 1984 | 258 | 千吨 | 2026-9 |
| 1983 | 272 | 千吨 | 2026-9 |
| 1982 | 243 | 千吨 | 2026-9 |
| 1981 | 257 | 千吨 | 2026-9 |
| 1980 | 386 | 千吨 | 2026-9 |
| 1979 | 279 | 千吨 | 2026-9 |
| 1978 | 301 | 千吨 | 2026-9 |
| 1977 | 310 | 千吨 | 2026-9 |
| 1976 | 238 | 千吨 | 2026-9 |
| 1975 | 327 | 千吨 | 2026-9 |
| 1974 | 249 | 千吨 | 2026-9 |
| 1973 | 152 | 千吨 | 2026-9 |
| 1972 | 143 | 千吨 | 2026-9 |
| 1971 | 171 | 千吨 | 2026-9 |
| 1970 | 160 | 千吨 | 2026-9 |
| 1969 | 143 | 千吨 | 2026-9 |
| 1968 | 139 | 千吨 | 2026-9 |
| 1967 | 171 | 千吨 | 2026-9 |
| 1966 | 87 | 千吨 | 2026-9 |
| 1965 | 66 | 千吨 | 2026-9 |
| 1964 | 65 | 千吨 | 2026-9 |
| 1963 | 81 | 千吨 | 2026-9 |
| 1962 | 81 | 千吨 | 2026-9 |
| 1961 | 99 | 千吨 | 2026-9 |
| 1960 | 70 | 千吨 | 2026-9 |