| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2003 | 60 | 千吨 | 2026-9 |
| 2002 | 61 | 千吨 | 2026-9 |
| 2001 | 62 | 千吨 | 2026-9 |
| 2000 | 62 | 千吨 | 2026-9 |
| 1999 | 60 | 千吨 | 2026-9 |
| 1998 | 66 | 千吨 | 2026-9 |
| 1997 | 70 | 千吨 | 2026-9 |
| 1996 | 77 | 千吨 | 2026-9 |
| 1995 | 76 | 千吨 | 2026-9 |
| 1994 | 74 | 千吨 | 2026-9 |
| 1993 | 72 | 千吨 | 2026-9 |
| 1992 | 70 | 千吨 | 2026-9 |
| 1991 | 84 | 千吨 | 2026-9 |
| 1990 | 96 | 千吨 | 2026-9 |
| 1989 | 94 | 千吨 | 2026-9 |
| 1988 | 96 | 千吨 | 2026-9 |
| 1987 | 82 | 千吨 | 2026-9 |
| 1986 | 83 | 千吨 | 2026-9 |
| 1985 | 73 | 千吨 | 2026-9 |
| 1984 | 67 | 千吨 | 2026-9 |
| 1983 | 35 | 千吨 | 2026-9 |
| 1982 | 28 | 千吨 | 2026-9 |
| 1981 | 28 | 千吨 | 2026-9 |
| 1980 | 28 | 千吨 | 2026-9 |
| 1979 | 28 | 千吨 | 2026-9 |
| 1978 | 28 | 千吨 | 2026-9 |
| 1977 | 27 | 千吨 | 2026-9 |
| 1976 | 28 | 千吨 | 2026-9 |
| 1975 | 31 | 千吨 | 2026-9 |
| 1974 | 25 | 千吨 | 2026-9 |
| 1973 | 24 | 千吨 | 2026-9 |
| 1972 | 24 | 千吨 | 2026-9 |
| 1971 | 28 | 千吨 | 2026-9 |
| 1970 | 27 | 千吨 | 2026-9 |
| 1969 | 31 | 千吨 | 2026-9 |
| 1968 | 33 | 千吨 | 2026-9 |
| 1967 | 26 | 千吨 | 2026-9 |
| 1966 | 25 | 千吨 | 2026-9 |
| 1965 | 26 | 千吨 | 2026-9 |
| 1964 | 23 | 千吨 | 2026-9 |