| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 255 | 千吨 | 2026-9 |
| 1995 | 242 | 千吨 | 2026-9 |
| 1994 | 195 | 千吨 | 2026-9 |
| 1993 | 175 | 千吨 | 2026-9 |
| 1992 | 165 | 千吨 | 2026-9 |
| 1991 | 156 | 千吨 | 2026-9 |
| 1990 | 147 | 千吨 | 2026-9 |
| 1989 | 144 | 千吨 | 2026-9 |
| 1988 | 150 | 千吨 | 2026-9 |
| 1987 | 139 | 千吨 | 2026-9 |
| 1986 | 136 | 千吨 | 2026-9 |
| 1985 | 125 | 千吨 | 2026-9 |
| 1984 | 117 | 千吨 | 2026-9 |
| 1983 | 115 | 千吨 | 2026-9 |
| 1982 | 117 | 千吨 | 2026-9 |
| 1981 | 109 | 千吨 | 2026-9 |
| 1980 | 108 | 千吨 | 2026-9 |
| 1979 | 104 | 千吨 | 2026-9 |
| 1978 | 87 | 千吨 | 2026-9 |
| 1977 | 96 | 千吨 | 2026-9 |
| 1976 | 99 | 千吨 | 2026-9 |
| 1975 | 91 | 千吨 | 2026-9 |
| 1974 | 96 | 千吨 | 2026-9 |
| 1973 | 94 | 千吨 | 2026-9 |
| 1972 | 91 | 千吨 | 2026-9 |
| 1971 | 91 | 千吨 | 2026-9 |
| 1970 | 90 | 千吨 | 2026-9 |
| 1969 | 84 | 千吨 | 2026-9 |
| 1968 | 85 | 千吨 | 2026-9 |
| 1967 | 83 | 千吨 | 2026-9 |
| 1966 | 80 | 千吨 | 2026-9 |
| 1965 | 76 | 千吨 | 2026-9 |
| 1964 | 68 | 千吨 | 2026-9 |