| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1992 | 562 | 千吨 | 2026-9 |
| 1991 | 500 | 千吨 | 2026-9 |
| 1990 | 427 | 千吨 | 2026-9 |
| 1989 | 520 | 千吨 | 2026-9 |
| 1988 | 445 | 千吨 | 2026-9 |
| 1987 | 470 | 千吨 | 2026-9 |
| 1986 | 565 | 千吨 | 2026-9 |
| 1985 | 430 | 千吨 | 2026-9 |
| 1984 | 400 | 千吨 | 2026-9 |
| 1983 | 329 | 千吨 | 2026-9 |
| 1982 | 346 | 千吨 | 2026-9 |
| 1981 | 351 | 千吨 | 2026-9 |
| 1980 | 309 | 千吨 | 2026-9 |
| 1979 | 243 | 千吨 | 2026-9 |
| 1978 | 220 | 千吨 | 2026-9 |
| 1977 | 272 | 千吨 | 2026-9 |
| 1976 | 334 | 千吨 | 2026-9 |
| 1975 | 337 | 千吨 | 2026-9 |
| 1974 | 296 | 千吨 | 2026-9 |
| 1973 | 161 | 千吨 | 2026-9 |
| 1972 | 152 | 千吨 | 2026-9 |
| 1971 | 175 | 千吨 | 2026-9 |
| 1970 | 137 | 千吨 | 2026-9 |
| 1969 | 141 | 千吨 | 2026-9 |
| 1968 | 171 | 千吨 | 2026-9 |
| 1967 | 109 | 千吨 | 2026-9 |
| 1966 | 101 | 千吨 | 2026-9 |
| 1965 | 78 | 千吨 | 2026-9 |
| 1964 | 91 | 千吨 | 2026-9 |
| 1963 | 118 | 千吨 | 2026-9 |
| 1962 | 170 | 千吨 | 2026-9 |
| 1961 | 122 | 千吨 | 2026-9 |
| 1960 | 0 | 千吨 | 2026-9 |