| 年度 | 数值 | 单位 | 发布日期 |
| 1993 | 765 | 千吨 | 2026-9 |
| 1992 | 768 | 千吨 | 2026-9 |
| 1991 | 775 | 千吨 | 2026-9 |
| 1990 | 990 | 千吨 | 2026-9 |
| 1989 | 890 | 千吨 | 2026-9 |
| 1988 | 890 | 千吨 | 2026-9 |
| 1987 | 884 | 千吨 | 2026-9 |
| 1986 | 857 | 千吨 | 2026-9 |
| 1985 | 872 | 千吨 | 2026-9 |
| 1984 | 887 | 千吨 | 2026-9 |
| 1983 | 926 | 千吨 | 2026-9 |
| 1982 | 944 | 千吨 | 2026-9 |
| 1981 | 961 | 千吨 | 2026-9 |
| 1980 | 938 | 千吨 | 2026-9 |
| 1979 | 978 | 千吨 | 2026-9 |
| 1978 | 914 | 千吨 | 2026-9 |
| 1977 | 900 | 千吨 | 2026-9 |
| 1976 | 934 | 千吨 | 2026-9 |
| 1975 | 920 | 千吨 | 2026-9 |
| 1974 | 931 | 千吨 | 2026-9 |
| 1973 | 930 | 千吨 | 2026-9 |
| 1972 | 917 | 千吨 | 2026-9 |
| 1971 | 912 | 千吨 | 2026-9 |
| 1970 | 910 | 千吨 | 2026-9 |
| 1969 | 917 | 千吨 | 2026-9 |
| 1968 | 911 | 千吨 | 2026-9 |
| 1967 | 893 | 千吨 | 2026-9 |
| 1966 | 887 | 千吨 | 2026-9 |
| 1965 | 880 | 千吨 | 2026-9 |
| 1964 | 877 | 千吨 | 2026-9 |