| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 56 | 千吨 | 2026-9 |
| 1995 | 55 | 千吨 | 2026-9 |
| 1994 | 60 | 千吨 | 2026-9 |
| 1993 | 60 | 千吨 | 2026-9 |
| 1992 | 61 | 千吨 | 2026-9 |
| 1991 | 67 | 千吨 | 2026-9 |
| 1990 | 77 | 千吨 | 2026-9 |
| 1989 | 74 | 千吨 | 2026-9 |
| 1988 | 71 | 千吨 | 2026-9 |
| 1987 | 80 | 千吨 | 2026-9 |
| 1986 | 82 | 千吨 | 2026-9 |
| 1985 | 85 | 千吨 | 2026-9 |
| 1984 | 89 | 千吨 | 2026-9 |
| 1983 | 94 | 千吨 | 2026-9 |
| 1982 | 78 | 千吨 | 2026-9 |
| 1981 | 82 | 千吨 | 2026-9 |
| 1980 | 78 | 千吨 | 2026-9 |
| 1979 | 82 | 千吨 | 2026-9 |
| 1978 | 79 | 千吨 | 2026-9 |
| 1977 | 81 | 千吨 | 2026-9 |
| 1976 | 89 | 千吨 | 2026-9 |
| 1975 | 80 | 千吨 | 2026-9 |
| 1974 | 85 | 千吨 | 2026-9 |
| 1973 | 83 | 千吨 | 2026-9 |
| 1972 | 89 | 千吨 | 2026-9 |
| 1971 | 94 | 千吨 | 2026-9 |
| 1970 | 106 | 千吨 | 2026-9 |
| 1969 | 112 | 千吨 | 2026-9 |
| 1968 | 103 | 千吨 | 2026-9 |
| 1967 | 99 | 千吨 | 2026-9 |
| 1966 | 103 | 千吨 | 2026-9 |
| 1965 | 103 | 千吨 | 2026-9 |
| 1964 | 107 | 千吨 | 2026-9 |