| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2003 | 200 | 千吨 | 2026-9 |
| 2002 | 200 | 千吨 | 2026-9 |
| 2001 | 200 | 千吨 | 2026-9 |
| 2000 | 200 | 千吨 | 2026-9 |
| 1999 | 189 | 千吨 | 2026-9 |
| 1998 | 186 | 千吨 | 2026-9 |
| 1997 | 172 | 千吨 | 2026-9 |
| 1996 | 180 | 千吨 | 2026-9 |
| 1995 | 200 | 千吨 | 2026-9 |
| 1994 | 215 | 千吨 | 2026-9 |
| 1993 | 263 | 千吨 | 2026-9 |
| 1992 | 253 | 千吨 | 2026-9 |
| 1991 | 230 | 千吨 | 2026-9 |
| 1990 | 280 | 千吨 | 2026-9 |
| 1989 | 288 | 千吨 | 2026-9 |
| 1988 | 384 | 千吨 | 2026-9 |
| 1987 | 378 | 千吨 | 2026-9 |
| 1986 | 305 | 千吨 | 2026-9 |
| 1985 | 324 | 千吨 | 2026-9 |
| 1984 | 300 | 千吨 | 2026-9 |
| 1983 | 308 | 千吨 | 2026-9 |
| 1982 | 310 | 千吨 | 2026-9 |
| 1981 | 575 | 千吨 | 2026-9 |
| 1980 | 520 | 千吨 | 2026-9 |
| 1979 | 470 | 千吨 | 2026-9 |
| 1978 | 474 | 千吨 | 2026-9 |
| 1977 | 350 | 千吨 | 2026-9 |
| 1976 | 345 | 千吨 | 2026-9 |
| 1975 | 344 | 千吨 | 2026-9 |
| 1974 | 333 | 千吨 | 2026-9 |
| 1973 | 329 | 千吨 | 2026-9 |
| 1972 | 334 | 千吨 | 2026-9 |
| 1971 | 255 | 千吨 | 2026-9 |
| 1970 | 276 | 千吨 | 2026-9 |
| 1969 | 249 | 千吨 | 2026-9 |
| 1968 | 226 | 千吨 | 2026-9 |
| 1967 | 207 | 千吨 | 2026-9 |
| 1966 | 188 | 千吨 | 2026-9 |
| 1965 | 164 | 千吨 | 2026-9 |
| 1964 | 190 | 千吨 | 2026-9 |