| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2005 | 675 | 千吨 | 2026-9 |
| 2004 | 650 | 千吨 | 2026-9 |
| 2003 | 715 | 千吨 | 2026-9 |
| 2002 | 745 | 千吨 | 2026-9 |
| 2001 | 750 | 千吨 | 2026-9 |
| 2000 | 750 | 千吨 | 2026-9 |
| 1999 | 700 | 千吨 | 2026-9 |
| 1998 | 708 | 千吨 | 2026-9 |
| 1997 | 575 | 千吨 | 2026-9 |
| 1996 | 488 | 千吨 | 2026-9 |
| 1995 | 216 | 千吨 | 2026-9 |
| 1994 | 211 | 千吨 | 2026-9 |
| 1993 | 210 | 千吨 | 2026-9 |
| 1992 | 192 | 千吨 | 2026-9 |
| 1991 | 197 | 千吨 | 2026-9 |
| 1990 | 220 | 千吨 | 2026-9 |
| 1989 | 300 | 千吨 | 2026-9 |
| 1988 | 312 | 千吨 | 2026-9 |
| 1987 | 310 | 千吨 | 2026-9 |
| 1986 | 310 | 千吨 | 2026-9 |
| 1985 | 307 | 千吨 | 2026-9 |
| 1984 | 105 | 千吨 | 2026-9 |
| 1983 | 95 | 千吨 | 2026-9 |
| 1982 | 110 | 千吨 | 2026-9 |
| 1981 | 100 | 千吨 | 2026-9 |
| 1980 | 96 | 千吨 | 2026-9 |
| 1979 | 100 | 千吨 | 2026-9 |
| 1978 | 96 | 千吨 | 2026-9 |
| 1977 | 94 | 千吨 | 2026-9 |
| 1976 | 94 | 千吨 | 2026-9 |
| 1975 | 93 | 千吨 | 2026-9 |
| 1974 | 92 | 千吨 | 2026-9 |
| 1973 | 92 | 千吨 | 2026-9 |
| 1972 | 89 | 千吨 | 2026-9 |
| 1971 | 88 | 千吨 | 2026-9 |
| 1970 | 87 | 千吨 | 2026-9 |
| 1969 | 115 | 千吨 | 2026-9 |
| 1968 | 110 | 千吨 | 2026-9 |
| 1967 | 109 | 千吨 | 2026-9 |
| 1966 | 108 | 千吨 | 2026-9 |
| 1965 | 107 | 千吨 | 2026-9 |
| 1964 | 107 | 千吨 | 2026-9 |