| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 1064 | 千吨 | 2026-9 |
| 1995 | 1022 | 千吨 | 2026-9 |
| 1994 | 1011 | 千吨 | 2026-9 |
| 1993 | 949 | 千吨 | 2026-9 |
| 1992 | 928 | 千吨 | 2026-9 |
| 1991 | 935 | 千吨 | 2026-9 |
| 1990 | 798 | 千吨 | 2026-9 |
| 1989 | 770 | 千吨 | 2026-9 |
| 1988 | 801 | 千吨 | 2026-9 |
| 1987 | 760 | 千吨 | 2026-9 |
| 1986 | 700 | 千吨 | 2026-9 |
| 1985 | 650 | 千吨 | 2026-9 |
| 1984 | 633 | 千吨 | 2026-9 |
| 1983 | 600 | 千吨 | 2026-9 |
| 1982 | 600 | 千吨 | 2026-9 |
| 1981 | 557 | 千吨 | 2026-9 |
| 1980 | 555 | 千吨 | 2026-9 |
| 1979 | 556 | 千吨 | 2026-9 |
| 1978 | 580 | 千吨 | 2026-9 |
| 1977 | 565 | 千吨 | 2026-9 |
| 1976 | 550 | 千吨 | 2026-9 |
| 1975 | 444 | 千吨 | 2026-9 |
| 1974 | 475 | 千吨 | 2026-9 |
| 1973 | 489 | 千吨 | 2026-9 |
| 1972 | 483 | 千吨 | 2026-9 |
| 1971 | 429 | 千吨 | 2026-9 |
| 1970 | 426 | 千吨 | 2026-9 |
| 1969 | 396 | 千吨 | 2026-9 |
| 1968 | 374 | 千吨 | 2026-9 |
| 1967 | 321 | 千吨 | 2026-9 |
| 1966 | 298 | 千吨 | 2026-9 |
| 1965 | 271 | 千吨 | 2026-9 |
| 1964 | 245 | 千吨 | 2026-9 |