| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 167 | 千吨 | 2026-9 |
| 1995 | 188 | 千吨 | 2026-9 |
| 1994 | 214 | 千吨 | 2026-9 |
| 1993 | 269 | 千吨 | 2026-9 |
| 1992 | 313 | 千吨 | 2026-9 |
| 1991 | 314 | 千吨 | 2026-9 |
| 1990 | 249 | 千吨 | 2026-9 |
| 1989 | 425 | 千吨 | 2026-9 |
| 1988 | 701 | 千吨 | 2026-9 |
| 1987 | 574 | 千吨 | 2026-9 |
| 1986 | 399 | 千吨 | 2026-9 |
| 1985 | 370 | 千吨 | 2026-9 |
| 1984 | 360 | 千吨 | 2026-9 |
| 1983 | 257 | 千吨 | 2026-9 |
| 1982 | 281 | 千吨 | 2026-9 |
| 1981 | 287 | 千吨 | 2026-9 |
| 1980 | 281 | 千吨 | 2026-9 |
| 1979 | 280 | 千吨 | 2026-9 |
| 1978 | 226 | 千吨 | 2026-9 |
| 1977 | 206 | 千吨 | 2026-9 |
| 1976 | 225 | 千吨 | 2026-9 |
| 1975 | 223 | 千吨 | 2026-9 |
| 1974 | 210 | 千吨 | 2026-9 |
| 1973 | 215 | 千吨 | 2026-9 |
| 1972 | 137 | 千吨 | 2026-9 |
| 1971 | 133 | 千吨 | 2026-9 |
| 1970 | 186 | 千吨 | 2026-9 |
| 1969 | 90 | 千吨 | 2026-9 |
| 1968 | 95 | 千吨 | 2026-9 |
| 1967 | 101 | 千吨 | 2026-9 |
| 1966 | 103 | 千吨 | 2026-9 |
| 1965 | 90 | 千吨 | 2026-9 |
| 1964 | 87 | 千吨 | 2026-9 |