| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 108 | 千吨 | 2026-9 |
| 1995 | 130 | 千吨 | 2026-9 |
| 1994 | 144 | 千吨 | 2026-9 |
| 1993 | 211 | 千吨 | 2026-9 |
| 1992 | 265 | 千吨 | 2026-9 |
| 1991 | 257 | 千吨 | 2026-9 |
| 1990 | 192 | 千吨 | 2026-9 |
| 1989 | 362 | 千吨 | 2026-9 |
| 1988 | 480 | 千吨 | 2026-9 |
| 1987 | 417 | 千吨 | 2026-9 |
| 1986 | 252 | 千吨 | 2026-9 |
| 1985 | 272 | 千吨 | 2026-9 |
| 1984 | 282 | 千吨 | 2026-9 |
| 1983 | 193 | 千吨 | 2026-9 |
| 1982 | 218 | 千吨 | 2026-9 |
| 1981 | 201 | 千吨 | 2026-9 |
| 1980 | 183 | 千吨 | 2026-9 |
| 1979 | 211 | 千吨 | 2026-9 |
| 1978 | 145 | 千吨 | 2026-9 |
| 1977 | 134 | 千吨 | 2026-9 |
| 1976 | 172 | 千吨 | 2026-9 |
| 1975 | 170 | 千吨 | 2026-9 |
| 1974 | 160 | 千吨 | 2026-9 |
| 1973 | 159 | 千吨 | 2026-9 |
| 1972 | 99 | 千吨 | 2026-9 |
| 1971 | 92 | 千吨 | 2026-9 |
| 1970 | 149 | 千吨 | 2026-9 |
| 1969 | 51 | 千吨 | 2026-9 |
| 1968 | 62 | 千吨 | 2026-9 |
| 1967 | 56 | 千吨 | 2026-9 |
| 1966 | 48 | 千吨 | 2026-9 |
| 1965 | 35 | 千吨 | 2026-9 |
| 1964 | 25 | 千吨 | 2026-9 |