| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 152 | 千吨 | 2026-9 |
| 1995 | 142 | 千吨 | 2026-9 |
| 1994 | 125 | 千吨 | 2026-9 |
| 1993 | 127 | 千吨 | 2026-9 |
| 1992 | 119 | 千吨 | 2026-9 |
| 1991 | 105 | 千吨 | 2026-9 |
| 1990 | 97 | 千吨 | 2026-9 |
| 1989 | 99 | 千吨 | 2026-9 |
| 1988 | 95 | 千吨 | 2026-9 |
| 1987 | 82 | 千吨 | 2026-9 |
| 1986 | 81 | 千吨 | 2026-9 |
| 1985 | 80 | 千吨 | 2026-9 |
| 1984 | 71 | 千吨 | 2026-9 |
| 1983 | 68 | 千吨 | 2026-9 |
| 1982 | 61 | 千吨 | 2026-9 |
| 1981 | 63 | 千吨 | 2026-9 |
| 1980 | 61 | 千吨 | 2026-9 |
| 1979 | 61 | 千吨 | 2026-9 |
| 1978 | 63 | 千吨 | 2026-9 |
| 1977 | 60 | 千吨 | 2026-9 |
| 1976 | 51 | 千吨 | 2026-9 |
| 1975 | 46 | 千吨 | 2026-9 |
| 1974 | 43 | 千吨 | 2026-9 |
| 1973 | 39 | 千吨 | 2026-9 |
| 1972 | 34 | 千吨 | 2026-9 |
| 1971 | 31 | 千吨 | 2026-9 |
| 1970 | 31 | 千吨 | 2026-9 |
| 1969 | 30 | 千吨 | 2026-9 |
| 1968 | 28 | 千吨 | 2026-9 |
| 1967 | 27 | 千吨 | 2026-9 |
| 1966 | 30 | 千吨 | 2026-9 |
| 1965 | 30 | 千吨 | 2026-9 |
| 1964 | 19 | 千吨 | 2026-9 |