| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 466 | 千吨 | 2026-9 |
| 1995 | 426 | 千吨 | 2026-9 |
| 1994 | 408 | 千吨 | 2026-9 |
| 1993 | 373 | 千吨 | 2026-9 |
| 1992 | 355 | 千吨 | 2026-9 |
| 1991 | 317 | 千吨 | 2026-9 |
| 1990 | 286 | 千吨 | 2026-9 |
| 1989 | 265 | 千吨 | 2026-9 |
| 1988 | 253 | 千吨 | 2026-9 |
| 1987 | 238 | 千吨 | 2026-9 |
| 1986 | 224 | 千吨 | 2026-9 |
| 1985 | 214 | 千吨 | 2026-9 |
| 1984 | 210 | 千吨 | 2026-9 |
| 1983 | 220 | 千吨 | 2026-9 |
| 1982 | 231 | 千吨 | 2026-9 |
| 1981 | 243 | 千吨 | 2026-9 |
| 1980 | 216 | 千吨 | 2026-9 |
| 1979 | 208 | 千吨 | 2026-9 |
| 1978 | 207 | 千吨 | 2026-9 |
| 1977 | 215 | 千吨 | 2026-9 |
| 1976 | 210 | 千吨 | 2026-9 |
| 1975 | 200 | 千吨 | 2026-9 |
| 1974 | 204 | 千吨 | 2026-9 |
| 1973 | 202 | 千吨 | 2026-9 |
| 1972 | 210 | 千吨 | 2026-9 |
| 1971 | 198 | 千吨 | 2026-9 |
| 1970 | 186 | 千吨 | 2026-9 |
| 1969 | 155 | 千吨 | 2026-9 |
| 1968 | 139 | 千吨 | 2026-9 |
| 1967 | 119 | 千吨 | 2026-9 |
| 1966 | 99 | 千吨 | 2026-9 |
| 1965 | 87 | 千吨 | 2026-9 |
| 1964 | 56 | 千吨 | 2026-9 |