| 年度 | 数值 | 单位 | 发布日期 |
| 1992 | 80 | 千吨 | 2026-9 |
| 1991 | 81 | 千吨 | 2026-9 |
| 1990 | 82 | 千吨 | 2026-9 |
| 1989 | 82 | 千吨 | 2026-9 |
| 1988 | 82 | 千吨 | 2026-9 |
| 1987 | 86 | 千吨 | 2026-9 |
| 1986 | 79 | 千吨 | 2026-9 |
| 1985 | 82 | 千吨 | 2026-9 |
| 1984 | 86 | 千吨 | 2026-9 |
| 1983 | 86 | 千吨 | 2026-9 |
| 1982 | 89 | 千吨 | 2026-9 |
| 1981 | 94 | 千吨 | 2026-9 |
| 1980 | 100 | 千吨 | 2026-9 |
| 1979 | 99 | 千吨 | 2026-9 |
| 1978 | 101 | 千吨 | 2026-9 |
| 1977 | 108 | 千吨 | 2026-9 |
| 1976 | 121 | 千吨 | 2026-9 |
| 1975 | 123 | 千吨 | 2026-9 |
| 1974 | 110 | 千吨 | 2026-9 |
| 1973 | 91 | 千吨 | 2026-9 |
| 1972 | 89 | 千吨 | 2026-9 |
| 1971 | 88 | 千吨 | 2026-9 |
| 1970 | 90 | 千吨 | 2026-9 |
| 1969 | 86 | 千吨 | 2026-9 |
| 1968 | 81 | 千吨 | 2026-9 |
| 1967 | 74 | 千吨 | 2026-9 |
| 1966 | 66 | 千吨 | 2026-9 |
| 1965 | 61 | 千吨 | 2026-9 |
| 1964 | 56 | 千吨 | 2026-9 |
| 1963 | 51 | 千吨 | 2026-9 |
| 1962 | 44 | 千吨 | 2026-9 |
| 1961 | 34 | 千吨 | 2026-9 |
| 1960 | 29 | 千吨 | 2026-9 |