| 年度 | 数值 | 单位 | 发布日期 |
| 1996 | 4773 | 千吨 | 2026-9 |
| 1995 | 4798 | 千吨 | 2026-9 |
| 1994 | 4693 | 千吨 | 2026-9 |
| 1993 | 4715 | 千吨 | 2026-9 |
| 1992 | 4757 | 千吨 | 2026-9 |
| 1991 | 4758 | 千吨 | 2026-9 |
| 1990 | 4823 | 千吨 | 2026-9 |
| 1989 | 4785 | 千吨 | 2026-9 |
| 1988 | 4683 | 千吨 | 2026-9 |
| 1987 | 4860 | 千吨 | 2026-9 |
| 1986 | 4956 | 千吨 | 2026-9 |
| 1985 | 5156 | 千吨 | 2026-9 |
| 1984 | 5061 | 千吨 | 2026-9 |
| 1983 | 4765 | 千吨 | 2026-9 |
| 1982 | 4384 | 千吨 | 2026-9 |
| 1981 | 4044 | 千吨 | 2026-9 |
| 1980 | 4100 | 千吨 | 2026-9 |
| 1979 | 4165 | 千吨 | 2026-9 |
| 1978 | 4043 | 千吨 | 2026-9 |
| 1977 | 3530 | 千吨 | 2026-9 |
| 1976 | 3221 | 千吨 | 2026-9 |
| 1975 | 2958 | 千吨 | 2026-9 |
| 1974 | 2713 | 千吨 | 2026-9 |
| 1973 | 2836 | 千吨 | 2026-9 |
| 1972 | 2675 | 千吨 | 2026-9 |
| 1971 | 2526 | 千吨 | 2026-9 |
| 1970 | 2446 | 千吨 | 2026-9 |
| 1969 | 2518 | 千吨 | 2026-9 |
| 1968 | 2522 | 千吨 | 2026-9 |
| 1967 | 2321 | 千吨 | 2026-9 |
| 1966 | 2091 | 千吨 | 2026-9 |
| 1965 | 2011 | 千吨 | 2026-9 |
| 1964 | 1930 | 千吨 | 2026-9 |