| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 183 | 千吨 | 2026-9 |
| 1995 | 174 | 千吨 | 2026-9 |
| 1994 | 171 | 千吨 | 2026-9 |
| 1993 | 163 | 千吨 | 2026-9 |
| 1992 | 159 | 千吨 | 2026-9 |
| 1991 | 144 | 千吨 | 2026-9 |
| 1990 | 144 | 千吨 | 2026-9 |
| 1989 | 146 | 千吨 | 2026-9 |
| 1988 | 140 | 千吨 | 2026-9 |
| 1987 | 140 | 千吨 | 2026-9 |
| 1986 | 134 | 千吨 | 2026-9 |
| 1985 | 141 | 千吨 | 2026-9 |
| 1984 | 136 | 千吨 | 2026-9 |
| 1983 | 135 | 千吨 | 2026-9 |
| 1982 | 136 | 千吨 | 2026-9 |
| 1981 | 129 | 千吨 | 2026-9 |
| 1980 | 127 | 千吨 | 2026-9 |
| 1979 | 117 | 千吨 | 2026-9 |
| 1978 | 99 | 千吨 | 2026-9 |
| 1977 | 93 | 千吨 | 2026-9 |
| 1976 | 78 | 千吨 | 2026-9 |
| 1975 | 76 | 千吨 | 2026-9 |
| 1974 | 85 | 千吨 | 2026-9 |
| 1973 | 84 | 千吨 | 2026-9 |
| 1972 | 75 | 千吨 | 2026-9 |
| 1971 | 72 | 千吨 | 2026-9 |
| 1970 | 62 | 千吨 | 2026-9 |
| 1969 | 57 | 千吨 | 2026-9 |
| 1968 | 51 | 千吨 | 2026-9 |
| 1967 | 50 | 千吨 | 2026-9 |
| 1966 | 40 | 千吨 | 2026-9 |
| 1965 | 38 | 千吨 | 2026-9 |
| 1964 | 24 | 千吨 | 2026-9 |