| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 408 | 千吨 | 2026-9 |
| 1997 | 485 | 千吨 | 2026-9 |
| 1996 | 490 | 千吨 | 2026-9 |
| 1995 | 410 | 千吨 | 2026-9 |
| 1994 | 494 | 千吨 | 2026-9 |
| 1993 | 500 | 千吨 | 2026-9 |
| 1992 | 570 | 千吨 | 2026-9 |
| 1991 | 932 | 千吨 | 2026-9 |
| 1990 | 970 | 千吨 | 2026-9 |
| 1989 | 1079 | 千吨 | 2026-9 |
| 1988 | 986 | 千吨 | 2026-9 |
| 1987 | 1064 | 千吨 | 2026-9 |
| 1986 | 962 | 千吨 | 2026-9 |
| 1985 | 1060 | 千吨 | 2026-9 |
| 1984 | 1168 | 千吨 | 2026-9 |
| 1983 | 1094 | 千吨 | 2026-9 |
| 1982 | 981 | 千吨 | 2026-9 |
| 1981 | 941 | 千吨 | 2026-9 |
| 1980 | 939 | 千吨 | 2026-9 |
| 1979 | 917 | 千吨 | 2026-9 |
| 1978 | 887 | 千吨 | 2026-9 |
| 1977 | 899 | 千吨 | 2026-9 |
| 1976 | 795 | 千吨 | 2026-9 |
| 1975 | 875 | 千吨 | 2026-9 |
| 1974 | 842 | 千吨 | 2026-9 |
| 1973 | 725 | 千吨 | 2026-9 |
| 1972 | 426 | 千吨 | 2026-9 |
| 1971 | 376 | 千吨 | 2026-9 |
| 1970 | 310 | 千吨 | 2026-9 |
| 1969 | 301 | 千吨 | 2026-9 |
| 1968 | 339 | 千吨 | 2026-9 |
| 1967 | 293 | 千吨 | 2026-9 |
| 1966 | 297 | 千吨 | 2026-9 |
| 1965 | 307 | 千吨 | 2026-9 |
| 1964 | 287 | 千吨 | 2026-9 |
| 1963 | 281 | 千吨 | 2026-9 |
| 1962 | 283 | 千吨 | 2026-9 |
| 1961 | 275 | 千吨 | 2026-9 |
| 1960 | 249 | 千吨 | 2026-9 |