| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2004 | 450 | 千吨 | 2026-9 |
| 2003 | 455 | 千吨 | 2026-9 |
| 2002 | 455 | 千吨 | 2026-9 |
| 2001 | 450 | 千吨 | 2026-9 |
| 2000 | 448 | 千吨 | 2026-9 |
| 1999 | 452 | 千吨 | 2026-9 |
| 1998 | 454 | 千吨 | 2026-9 |
| 1997 | 446 | 千吨 | 2026-9 |
| 1996 | 410 | 千吨 | 2026-9 |
| 1995 | 399 | 千吨 | 2026-9 |
| 1994 | 379 | 千吨 | 2026-9 |
| 1993 | 365 | 千吨 | 2026-9 |
| 1992 | 340 | 千吨 | 2026-9 |
| 1991 | 313 | 千吨 | 2026-9 |
| 1990 | 315 | 千吨 | 2026-9 |
| 1989 | 310 | 千吨 | 2026-9 |
| 1988 | 284 | 千吨 | 2026-9 |
| 1987 | 248 | 千吨 | 2026-9 |
| 1986 | 155 | 千吨 | 2026-9 |
| 1985 | 150 | 千吨 | 2026-9 |
| 1984 | 146 | 千吨 | 2026-9 |
| 1983 | 148 | 千吨 | 2026-9 |
| 1982 | 207 | 千吨 | 2026-9 |
| 1981 | 243 | 千吨 | 2026-9 |
| 1980 | 273 | 千吨 | 2026-9 |
| 1979 | 349 | 千吨 | 2026-9 |
| 1978 | 301 | 千吨 | 2026-9 |
| 1977 | 285 | 千吨 | 2026-9 |
| 1976 | 336 | 千吨 | 2026-9 |
| 1975 | 326 | 千吨 | 2026-9 |
| 1974 | 333 | 千吨 | 2026-9 |
| 1973 | 363 | 千吨 | 2026-9 |
| 1972 | 210 | 千吨 | 2026-9 |
| 1971 | 250 | 千吨 | 2026-9 |
| 1970 | 240 | 千吨 | 2026-9 |
| 1969 | 220 | 千吨 | 2026-9 |
| 1968 | 210 | 千吨 | 2026-9 |
| 1967 | 210 | 千吨 | 2026-9 |
| 1966 | 250 | 千吨 | 2026-9 |
| 1965 | 300 | 千吨 | 2026-9 |
| 1964 | 300 | 千吨 | 2026-9 |