| 年度 | 数值 | 单位 | 发布日期 |
| 1996 | 4363 | 千吨 | 2026-9 |
| 1995 | 4426 | 千吨 | 2026-9 |
| 1994 | 4391 | 千吨 | 2026-9 |
| 1993 | 4471 | 千吨 | 2026-9 |
| 1992 | 4504 | 千吨 | 2026-9 |
| 1991 | 4460 | 千吨 | 2026-9 |
| 1990 | 4460 | 千吨 | 2026-9 |
| 1989 | 4447 | 千吨 | 2026-9 |
| 1988 | 4412 | 千吨 | 2026-9 |
| 1987 | 4874 | 千吨 | 2026-9 |
| 1986 | 4971 | 千吨 | 2026-9 |
| 1985 | 4570 | 千吨 | 2026-9 |
| 1984 | 4303 | 千吨 | 2026-9 |
| 1983 | 4272 | 千吨 | 2026-9 |
| 1982 | 4450 | 千吨 | 2026-9 |
| 1981 | 4405 | 千吨 | 2026-9 |
| 1980 | 4356 | 千吨 | 2026-9 |
| 1979 | 4118 | 千吨 | 2026-9 |
| 1978 | 4130 | 千吨 | 2026-9 |
| 1977 | 4186 | 千吨 | 2026-9 |
| 1976 | 4159 | 千吨 | 2026-9 |
| 1975 | 4149 | 千吨 | 2026-9 |
| 1974 | 4210 | 千吨 | 2026-9 |
| 1973 | 3968 | 千吨 | 2026-9 |
| 1972 | 3976 | 千吨 | 2026-9 |
| 1971 | 4148 | 千吨 | 2026-9 |
| 1970 | 4004 | 千吨 | 2026-9 |
| 1969 | 3807 | 千吨 | 2026-9 |
| 1968 | 3900 | 千吨 | 2026-9 |
| 1967 | 3800 | 千吨 | 2026-9 |
| 1966 | 3700 | 千吨 | 2026-9 |
| 1965 | 3600 | 千吨 | 2026-9 |
| 1964 | 5243 | 千吨 | 2026-9 |