| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 295 | 千吨 | 2026-9 |
| 1995 | 292 | 千吨 | 2026-9 |
| 1994 | 294 | 千吨 | 2026-9 |
| 1993 | 284 | 千吨 | 2026-9 |
| 1992 | 270 | 千吨 | 2026-9 |
| 1991 | 254 | 千吨 | 2026-9 |
| 1990 | 255 | 千吨 | 2026-9 |
| 1989 | 263 | 千吨 | 2026-9 |
| 1988 | 266 | 千吨 | 2026-9 |
| 1987 | 292 | 千吨 | 2026-9 |
| 1986 | 289 | 千吨 | 2026-9 |
| 1985 | 315 | 千吨 | 2026-9 |
| 1984 | 268 | 千吨 | 2026-9 |
| 1983 | 254 | 千吨 | 2026-9 |
| 1982 | 267 | 千吨 | 2026-9 |
| 1981 | 232 | 千吨 | 2026-9 |
| 1980 | 217 | 千吨 | 2026-9 |
| 1979 | 234 | 千吨 | 2026-9 |
| 1978 | 213 | 千吨 | 2026-9 |
| 1977 | 199 | 千吨 | 2026-9 |
| 1976 | 184 | 千吨 | 2026-9 |
| 1975 | 156 | 千吨 | 2026-9 |
| 1974 | 153 | 千吨 | 2026-9 |
| 1973 | 146 | 千吨 | 2026-9 |
| 1972 | 129 | 千吨 | 2026-9 |
| 1971 | 113 | 千吨 | 2026-9 |
| 1970 | 93 | 千吨 | 2026-9 |
| 1969 | 79 | 千吨 | 2026-9 |
| 1968 | 69 | 千吨 | 2026-9 |
| 1967 | 67 | 千吨 | 2026-9 |
| 1966 | 70 | 千吨 | 2026-9 |
| 1965 | 63 | 千吨 | 2026-9 |
| 1964 | 58 | 千吨 | 2026-9 |