| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2004 | 170 | 千吨 | 2026-9 |
| 2003 | 180 | 千吨 | 2026-9 |
| 2002 | 180 | 千吨 | 2026-9 |
| 2001 | 190 | 千吨 | 2026-9 |
| 2000 | 192 | 千吨 | 2026-9 |
| 1999 | 192 | 千吨 | 2026-9 |
| 1998 | 192 | 千吨 | 2026-9 |
| 1997 | 183 | 千吨 | 2026-9 |
| 1996 | 172 | 千吨 | 2026-9 |
| 1995 | 172 | 千吨 | 2026-9 |
| 1994 | 142 | 千吨 | 2026-9 |
| 1993 | 144 | 千吨 | 2026-9 |
| 1992 | 142 | 千吨 | 2026-9 |
| 1991 | 134 | 千吨 | 2026-9 |
| 1990 | 127 | 千吨 | 2026-9 |
| 1989 | 110 | 千吨 | 2026-9 |
| 1988 | 100 | 千吨 | 2026-9 |
| 1987 | 95 | 千吨 | 2026-9 |
| 1986 | 95 | 千吨 | 2026-9 |
| 1985 | 90 | 千吨 | 2026-9 |
| 1984 | 80 | 千吨 | 2026-9 |
| 1983 | 83 | 千吨 | 2026-9 |
| 1982 | 95 | 千吨 | 2026-9 |
| 1981 | 108 | 千吨 | 2026-9 |
| 1980 | 97 | 千吨 | 2026-9 |
| 1979 | 86 | 千吨 | 2026-9 |
| 1978 | 120 | 千吨 | 2026-9 |
| 1977 | 110 | 千吨 | 2026-9 |
| 1976 | 92 | 千吨 | 2026-9 |
| 1975 | 50 | 千吨 | 2026-9 |
| 1974 | 50 | 千吨 | 2026-9 |
| 1973 | 50 | 千吨 | 2026-9 |
| 1972 | 50 | 千吨 | 2026-9 |
| 1971 | 50 | 千吨 | 2026-9 |
| 1970 | 50 | 千吨 | 2026-9 |
| 1969 | 50 | 千吨 | 2026-9 |
| 1968 | 45 | 千吨 | 2026-9 |
| 1967 | 45 | 千吨 | 2026-9 |
| 1966 | 50 | 千吨 | 2026-9 |
| 1965 | 45 | 千吨 | 2026-9 |
| 1964 | 50 | 千吨 | 2026-9 |