| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 126 | 千吨 | 2026-9 |
| 1995 | 118 | 千吨 | 2026-9 |
| 1994 | 143 | 千吨 | 2026-9 |
| 1993 | 161 | 千吨 | 2026-9 |
| 1992 | 171 | 千吨 | 2026-9 |
| 1991 | 183 | 千吨 | 2026-9 |
| 1990 | 177 | 千吨 | 2026-9 |
| 1989 | 172 | 千吨 | 2026-9 |
| 1988 | 211 | 千吨 | 2026-9 |
| 1987 | 255 | 千吨 | 2026-9 |
| 1986 | 284 | 千吨 | 2026-9 |
| 1985 | 258 | 千吨 | 2026-9 |
| 1984 | 294 | 千吨 | 2026-9 |
| 1983 | 269 | 千吨 | 2026-9 |
| 1982 | 214 | 千吨 | 2026-9 |
| 1981 | 161 | 千吨 | 2026-9 |
| 1980 | 276 | 千吨 | 2026-9 |
| 1979 | 273 | 千吨 | 2026-9 |
| 1978 | 223 | 千吨 | 2026-9 |
| 1977 | 188 | 千吨 | 2026-9 |
| 1976 | 197 | 千吨 | 2026-9 |
| 1975 | 160 | 千吨 | 2026-9 |
| 1974 | 181 | 千吨 | 2026-9 |
| 1973 | 226 | 千吨 | 2026-9 |
| 1972 | 246 | 千吨 | 2026-9 |
| 1971 | 147 | 千吨 | 2026-9 |
| 1970 | 160 | 千吨 | 2026-9 |
| 1969 | 195 | 千吨 | 2026-9 |
| 1968 | 124 | 千吨 | 2026-9 |
| 1967 | 102 | 千吨 | 2026-9 |
| 1966 | 72 | 千吨 | 2026-9 |
| 1965 | 24 | 千吨 | 2026-9 |
| 1964 | 7 | 千吨 | 2026-9 |