| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2004 | 400 | 千吨 | 2026-9 |
| 2003 | 420 | 千吨 | 2026-9 |
| 2002 | 428 | 千吨 | 2026-9 |
| 2001 | 418 | 千吨 | 2026-9 |
| 2000 | 435 | 千吨 | 2026-9 |
| 1999 | 392 | 千吨 | 2026-9 |
| 1998 | 408 | 千吨 | 2026-9 |
| 1997 | 423 | 千吨 | 2026-9 |
| 1996 | 322 | 千吨 | 2026-9 |
| 1995 | 347 | 千吨 | 2026-9 |
| 1994 | 370 | 千吨 | 2026-9 |
| 1993 | 377 | 千吨 | 2026-9 |
| 1992 | 365 | 千吨 | 2026-9 |
| 1991 | 380 | 千吨 | 2026-9 |
| 1990 | 355 | 千吨 | 2026-9 |
| 1989 | 337 | 千吨 | 2026-9 |
| 1988 | 307 | 千吨 | 2026-9 |
| 1987 | 276 | 千吨 | 2026-9 |
| 1986 | 307 | 千吨 | 2026-9 |
| 1985 | 324 | 千吨 | 2026-9 |
| 1984 | 302 | 千吨 | 2026-9 |
| 1983 | 340 | 千吨 | 2026-9 |
| 1982 | 337 | 千吨 | 2026-9 |
| 1981 | 344 | 千吨 | 2026-9 |
| 1980 | 346 | 千吨 | 2026-9 |
| 1979 | 296 | 千吨 | 2026-9 |
| 1978 | 311 | 千吨 | 2026-9 |
| 1977 | 274 | 千吨 | 2026-9 |
| 1976 | 271 | 千吨 | 2026-9 |
| 1975 | 267 | 千吨 | 2026-9 |
| 1974 | 235 | 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 | 137 | 千吨 | 2026-9 |
| 1960 | 121 | 千吨 | 2026-9 |