| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 330 | 千吨 | 2026-9 |
| 1995 | 361 | 千吨 | 2026-9 |
| 1994 | 365 | 千吨 | 2026-9 |
| 1993 | 349 | 千吨 | 2026-9 |
| 1992 | 344 | 千吨 | 2026-9 |
| 1991 | 316 | 千吨 | 2026-9 |
| 1990 | 234 | 千吨 | 2026-9 |
| 1989 | 234 | 千吨 | 2026-9 |
| 1988 | 229 | 千吨 | 2026-9 |
| 1987 | 228 | 千吨 | 2026-9 |
| 1986 | 221 | 千吨 | 2026-9 |
| 1985 | 215 | 千吨 | 2026-9 |
| 1984 | 217 | 千吨 | 2026-9 |
| 1983 | 215 | 千吨 | 2026-9 |
| 1982 | 251 | 千吨 | 2026-9 |
| 1981 | 258 | 千吨 | 2026-9 |
| 1980 | 253 | 千吨 | 2026-9 |
| 1979 | 242 | 千吨 | 2026-9 |
| 1978 | 234 | 千吨 | 2026-9 |
| 1977 | 219 | 千吨 | 2026-9 |
| 1976 | 208 | 千吨 | 2026-9 |
| 1975 | 190 | 千吨 | 2026-9 |
| 1974 | 170 | 千吨 | 2026-9 |
| 1973 | 181 | 千吨 | 2026-9 |
| 1972 | 169 | 千吨 | 2026-9 |
| 1971 | 170 | 千吨 | 2026-9 |
| 1970 | 156 | 千吨 | 2026-9 |
| 1969 | 123 | 千吨 | 2026-9 |
| 1968 | 107 | 千吨 | 2026-9 |
| 1967 | 102 | 千吨 | 2026-9 |
| 1966 | 79 | 千吨 | 2026-9 |
| 1965 | 55 | 千吨 | 2026-9 |
| 1964 | 48 | 千吨 | 2026-9 |