| 年度 | 数值 | 单位 | 发布日期 |
| 1996 | 1141 | 千吨 | 2026-9 |
| 1995 | 1141 | 千吨 | 2026-9 |
| 1994 | 1130 | 千吨 | 2026-9 |
| 1993 | 1128 | 千吨 | 2026-9 |
| 1992 | 1061 | 千吨 | 2026-9 |
| 1991 | 1051 | 千吨 | 2026-9 |
| 1990 | 1101 | 千吨 | 2026-9 |
| 1989 | 1110 | 千吨 | 2026-9 |
| 1988 | 1057 | 千吨 | 2026-9 |
| 1987 | 1018 | 千吨 | 2026-9 |
| 1986 | 1040 | 千吨 | 2026-9 |
| 1985 | 980 | 千吨 | 2026-9 |
| 1984 | 994 | 千吨 | 2026-9 |
| 1983 | 957 | 千吨 | 2026-9 |
| 1982 | 940 | 千吨 | 2026-9 |
| 1981 | 965 | 千吨 | 2026-9 |
| 1980 | 952 | 千吨 | 2026-9 |
| 1979 | 1095 | 千吨 | 2026-9 |
| 1978 | 1037 | 千吨 | 2026-9 |
| 1977 | 1098 | 千吨 | 2026-9 |
| 1976 | 1075 | 千吨 | 2026-9 |
| 1975 | 1067 | 千吨 | 2026-9 |
| 1974 | 978 | 千吨 | 2026-9 |
| 1973 | 985 | 千吨 | 2026-9 |
| 1972 | 898 | 千吨 | 2026-9 |
| 1971 | 851 | 千吨 | 2026-9 |
| 1970 | 826 | 千吨 | 2026-9 |
| 1969 | 804 | 千吨 | 2026-9 |
| 1968 | 782 | 千吨 | 2026-9 |
| 1967 | 796 | 千吨 | 2026-9 |
| 1966 | 663 | 千吨 | 2026-9 |
| 1965 | 683 | 千吨 | 2026-9 |
| 1964 | 657 | 千吨 | 2026-9 |