| 年度 | 数值 | 单位 | 发布日期 |
| 1993 | 809 | 千吨 | 2026-9 |
| 1992 | 809 | 千吨 | 2026-9 |
| 1991 | 810 | 千吨 | 2026-9 |
| 1990 | 942 | 千吨 | 2026-9 |
| 1989 | 960 | 千吨 | 2026-9 |
| 1988 | 938 | 千吨 | 2026-9 |
| 1987 | 843 | 千吨 | 2026-9 |
| 1986 | 859 | 千吨 | 2026-9 |
| 1985 | 832 | 千吨 | 2026-9 |
| 1984 | 846 | 千吨 | 2026-9 |
| 1983 | 827 | 千吨 | 2026-9 |
| 1982 | 772 | 千吨 | 2026-9 |
| 1981 | 877 | 千吨 | 2026-9 |
| 1980 | 851 | 千吨 | 2026-9 |
| 1979 | 828 | 千吨 | 2026-9 |
| 1978 | 830 | 千吨 | 2026-9 |
| 1977 | 780 | 千吨 | 2026-9 |
| 1976 | 728 | 千吨 | 2026-9 |
| 1975 | 738 | 千吨 | 2026-9 |
| 1974 | 703 | 千吨 | 2026-9 |
| 1973 | 671 | 千吨 | 2026-9 |
| 1972 | 440 | 千吨 | 2026-9 |
| 1971 | 408 | 千吨 | 2026-9 |
| 1970 | 381 | 千吨 | 2026-9 |
| 1969 | 366 | 千吨 | 2026-9 |
| 1968 | 386 | 千吨 | 2026-9 |
| 1967 | 362 | 千吨 | 2026-9 |
| 1966 | 359 | 千吨 | 2026-9 |
| 1965 | 389 | 千吨 | 2026-9 |
| 1964 | 347 | 千吨 | 2026-9 |
| 1963 | 324 | 千吨 | 2026-9 |
| 1962 | 317 | 千吨 | 2026-9 |
| 1961 | 324 | 千吨 | 2026-9 |
| 1960 | 309 | 千吨 | 2026-9 |