| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 466 | 千吨 | 2026-9 |
| 1997 | 526 | 千吨 | 2026-9 |
| 1996 | 519 | 千吨 | 2026-9 |
| 1995 | 502 | 千吨 | 2026-9 |
| 1994 | 578 | 千吨 | 2026-9 |
| 1993 | 571 | 千吨 | 2026-9 |
| 1992 | 656 | 千吨 | 2026-9 |
| 1991 | 975 | 千吨 | 2026-9 |
| 1990 | 987 | 千吨 | 2026-9 |
| 1989 | 1089 | 千吨 | 2026-9 |
| 1988 | 994 | 千吨 | 2026-9 |
| 1987 | 1069 | 千吨 | 2026-9 |
| 1986 | 967 | 千吨 | 2026-9 |
| 1985 | 1064 | 千吨 | 2026-9 |
| 1984 | 1171 | 千吨 | 2026-9 |
| 1983 | 1094 | 千吨 | 2026-9 |
| 1982 | 982 | 千吨 | 2026-9 |
| 1981 | 941 | 千吨 | 2026-9 |
| 1980 | 941 | 千吨 | 2026-9 |
| 1979 | 917 | 千吨 | 2026-9 |
| 1978 | 887 | 千吨 | 2026-9 |
| 1977 | 899 | 千吨 | 2026-9 |
| 1976 | 804 | 千吨 | 2026-9 |
| 1975 | 877 | 千吨 | 2026-9 |
| 1974 | 858 | 千吨 | 2026-9 |
| 1973 | 738 | 千吨 | 2026-9 |
| 1972 | 429 | 千吨 | 2026-9 |
| 1971 | 380 | 千吨 | 2026-9 |
| 1970 | 353 | 千吨 | 2026-9 |
| 1969 | 321 | 千吨 | 2026-9 |
| 1968 | 354 | 千吨 | 2026-9 |
| 1967 | 335 | 千吨 | 2026-9 |
| 1966 | 315 | 千吨 | 2026-9 |
| 1965 | 328 | 千吨 | 2026-9 |
| 1964 | 305 | 千吨 | 2026-9 |
| 1963 | 293 | 千吨 | 2026-9 |
| 1962 | 290 | 千吨 | 2026-9 |
| 1961 | 286 | 千吨 | 2026-9 |
| 1960 | 249 | 千吨 | 2026-9 |