| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2004 | 460 | 千吨 | 2026-9 |
| 2003 | 435 | 千吨 | 2026-9 |
| 2002 | 439 | 千吨 | 2026-9 |
| 2001 | 430 | 千吨 | 2026-9 |
| 2000 | 445 | 千吨 | 2026-9 |
| 1999 | 400 | 千吨 | 2026-9 |
| 1998 | 421 | 千吨 | 2026-9 |
| 1997 | 430 | 千吨 | 2026-9 |
| 1996 | 328 | 千吨 | 2026-9 |
| 1995 | 355 | 千吨 | 2026-9 |
| 1994 | 377 | 千吨 | 2026-9 |
| 1993 | 400 | 千吨 | 2026-9 |
| 1992 | 390 | 千吨 | 2026-9 |
| 1991 | 405 | 千吨 | 2026-9 |
| 1990 | 372 | 千吨 | 2026-9 |
| 1989 | 366 | 千吨 | 2026-9 |
| 1988 | 336 | 千吨 | 2026-9 |
| 1987 | 297 | 千吨 | 2026-9 |
| 1986 | 307 | 千吨 | 2026-9 |
| 1985 | 325 | 千吨 | 2026-9 |
| 1984 | 308 | 千吨 | 2026-9 |
| 1983 | 358 | 千吨 | 2026-9 |
| 1982 | 396 | 千吨 | 2026-9 |
| 1981 | 405 | 千吨 | 2026-9 |
| 1980 | 392 | 千吨 | 2026-9 |
| 1979 | 343 | 千吨 | 2026-9 |
| 1978 | 353 | 千吨 | 2026-9 |
| 1977 | 314 | 千吨 | 2026-9 |
| 1976 | 306 | 千吨 | 2026-9 |
| 1975 | 298 | 千吨 | 2026-9 |
| 1974 | 237 | 千吨 | 2026-9 |
| 1973 | 230 | 千吨 | 2026-9 |
| 1972 | 219 | 千吨 | 2026-9 |
| 1971 | 214 | 千吨 | 2026-9 |
| 1970 | 201 | 千吨 | 2026-9 |
| 1969 | 208 | 千吨 | 2026-9 |
| 1968 | 184 | 千吨 | 2026-9 |
| 1967 | 184 | 千吨 | 2026-9 |
| 1966 | 177 | 千吨 | 2026-9 |
| 1965 | 162 | 千吨 | 2026-9 |
| 1964 | 158 | 千吨 | 2026-9 |
| 1963 | 147 | 千吨 | 2026-9 |
| 1962 | 138 | 千吨 | 2026-9 |
| 1961 | 138 | 千吨 | 2026-9 |
| 1960 | 121 | 千吨 | 2026-9 |