| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2004 | 635 | 千吨 | 2026-9 |
| 2003 | 640 | 千吨 | 2026-9 |
| 2002 | 640 | 千吨 | 2026-9 |
| 2001 | 640 | 千吨 | 2026-9 |
| 2000 | 630 | 千吨 | 2026-9 |
| 1999 | 620 | 千吨 | 2026-9 |
| 1998 | 610 | 千吨 | 2026-9 |
| 1997 | 593 | 千吨 | 2026-9 |
| 1996 | 600 | 千吨 | 2026-9 |
| 1995 | 630 | 千吨 | 2026-9 |
| 1994 | 598 | 千吨 | 2026-9 |
| 1993 | 592 | 千吨 | 2026-9 |
| 1992 | 567 | 千吨 | 2026-9 |
| 1991 | 536 | 千吨 | 2026-9 |
| 1990 | 527 | 千吨 | 2026-9 |
| 1989 | 561 | 千吨 | 2026-9 |
| 1988 | 478 | 千吨 | 2026-9 |
| 1987 | 460 | 千吨 | 2026-9 |
| 1986 | 260 | 千吨 | 2026-9 |
| 1985 | 243 | 千吨 | 2026-9 |
| 1984 | 217 | 千吨 | 2026-9 |
| 1983 | 202 | 千吨 | 2026-9 |
| 1982 | 197 | 千吨 | 2026-9 |
| 1981 | 200 | 千吨 | 2026-9 |
| 1980 | 205 | 千吨 | 2026-9 |
| 1979 | 220 | 千吨 | 2026-9 |
| 1978 | 168 | 千吨 | 2026-9 |
| 1977 | 194 | 千吨 | 2026-9 |
| 1976 | 190 | 千吨 | 2026-9 |
| 1975 | 213 | 千吨 | 2026-9 |
| 1974 | 205 | 千吨 | 2026-9 |
| 1973 | 161 | 千吨 | 2026-9 |
| 1972 | 145 | 千吨 | 2026-9 |
| 1971 | 165 | 千吨 | 2026-9 |
| 1970 | 184 | 千吨 | 2026-9 |
| 1969 | 188 | 千吨 | 2026-9 |
| 1968 | 165 | 千吨 | 2026-9 |
| 1967 | 156 | 千吨 | 2026-9 |
| 1966 | 164 | 千吨 | 2026-9 |
| 1965 | 147 | 千吨 | 2026-9 |
| 1964 | 140 | 千吨 | 2026-9 |
| 1963 | 148 | 千吨 | 2026-9 |
| 1962 | 153 | 千吨 | 2026-9 |
| 1961 | 142 | 千吨 | 2026-9 |
| 1960 | 122 | 千吨 | 2026-9 |