| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 326 | 千吨 | 2026-9 |
| 1995 | 340 | 千吨 | 2026-9 |
| 1994 | 320 | 千吨 | 2026-9 |
| 1993 | 340 | 千吨 | 2026-9 |
| 1992 | 296 | 千吨 | 2026-9 |
| 1991 | 303 | 千吨 | 2026-9 |
| 1990 | 296 | 千吨 | 2026-9 |
| 1989 | 285 | 千吨 | 2026-9 |
| 1988 | 274 | 千吨 | 2026-9 |
| 1987 | 275 | 千吨 | 2026-9 |
| 1986 | 261 | 千吨 | 2026-9 |
| 1985 | 257 | 千吨 | 2026-9 |
| 1984 | 304 | 千吨 | 2026-9 |
| 1983 | 258 | 千吨 | 2026-9 |
| 1982 | 253 | 千吨 | 2026-9 |
| 1981 | 242 | 千吨 | 2026-9 |
| 1980 | 223 | 千吨 | 2026-9 |
| 1979 | 192 | 千吨 | 2026-9 |
| 1978 | 180 | 千吨 | 2026-9 |
| 1977 | 172 | 千吨 | 2026-9 |
| 1976 | 159 | 千吨 | 2026-9 |
| 1975 | 149 | 千吨 | 2026-9 |
| 1974 | 143 | 千吨 | 2026-9 |
| 1973 | 130 | 千吨 | 2026-9 |
| 1972 | 128 | 千吨 | 2026-9 |
| 1971 | 118 | 千吨 | 2026-9 |
| 1970 | 112 | 千吨 | 2026-9 |
| 1969 | 105 | 千吨 | 2026-9 |
| 1968 | 110 | 千吨 | 2026-9 |
| 1967 | 120 | 千吨 | 2026-9 |
| 1966 | 120 | 千吨 | 2026-9 |
| 1965 | 117 | 千吨 | 2026-9 |
| 1964 | 124 | 千吨 | 2026-9 |