| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 151 | 千吨 | 2026-9 |
| 1995 | 145 | 千吨 | 2026-9 |
| 1994 | 146 | 千吨 | 2026-9 |
| 1993 | 144 | 千吨 | 2026-9 |
| 1992 | 144 | 千吨 | 2026-9 |
| 1991 | 130 | 千吨 | 2026-9 |
| 1990 | 129 | 千吨 | 2026-9 |
| 1989 | 136 | 千吨 | 2026-9 |
| 1988 | 132 | 千吨 | 2026-9 |
| 1987 | 133 | 千吨 | 2026-9 |
| 1986 | 124 | 千吨 | 2026-9 |
| 1985 | 133 | 千吨 | 2026-9 |
| 1984 | 128 | 千吨 | 2026-9 |
| 1983 | 128 | 千吨 | 2026-9 |
| 1982 | 132 | 千吨 | 2026-9 |
| 1981 | 129 | 千吨 | 2026-9 |
| 1980 | 123 | 千吨 | 2026-9 |
| 1979 | 117 | 千吨 | 2026-9 |
| 1978 | 98 | 千吨 | 2026-9 |
| 1977 | 90 | 千吨 | 2026-9 |
| 1976 | 78 | 千吨 | 2026-9 |
| 1975 | 75 | 千吨 | 2026-9 |
| 1974 | 82 | 千吨 | 2026-9 |
| 1973 | 75 | 千吨 | 2026-9 |
| 1972 | 73 | 千吨 | 2026-9 |
| 1971 | 70 | 千吨 | 2026-9 |
| 1970 | 60 | 千吨 | 2026-9 |
| 1969 | 51 | 千吨 | 2026-9 |
| 1968 | 44 | 千吨 | 2026-9 |
| 1967 | 39 | 千吨 | 2026-9 |
| 1966 | 29 | 千吨 | 2026-9 |
| 1965 | 26 | 千吨 | 2026-9 |
| 1964 | 19 | 千吨 | 2026-9 |