| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 243 | 千吨 | 2026-9 |
| 1995 | 232 | 千吨 | 2026-9 |
| 1994 | 227 | 千吨 | 2026-9 |
| 1993 | 231 | 千吨 | 2026-9 |
| 1992 | 197 | 千吨 | 2026-9 |
| 1991 | 174 | 千吨 | 2026-9 |
| 1990 | 164 | 千吨 | 2026-9 |
| 1989 | 147 | 千吨 | 2026-9 |
| 1988 | 141 | 千吨 | 2026-9 |
| 1987 | 139 | 千吨 | 2026-9 |
| 1986 | 134 | 千吨 | 2026-9 |
| 1985 | 144 | 千吨 | 2026-9 |
| 1984 | 165 | 千吨 | 2026-9 |
| 1983 | 148 | 千吨 | 2026-9 |
| 1982 | 142 | 千吨 | 2026-9 |
| 1981 | 139 | 千吨 | 2026-9 |
| 1980 | 137 | 千吨 | 2026-9 |
| 1979 | 129 | 千吨 | 2026-9 |
| 1978 | 122 | 千吨 | 2026-9 |
| 1977 | 116 | 千吨 | 2026-9 |
| 1976 | 106 | 千吨 | 2026-9 |
| 1975 | 101 | 千吨 | 2026-9 |
| 1974 | 93 | 千吨 | 2026-9 |
| 1973 | 92 | 千吨 | 2026-9 |
| 1972 | 88 | 千吨 | 2026-9 |
| 1971 | 88 | 千吨 | 2026-9 |
| 1970 | 81 | 千吨 | 2026-9 |
| 1969 | 80 | 千吨 | 2026-9 |
| 1968 | 75 | 千吨 | 2026-9 |
| 1967 | 74 | 千吨 | 2026-9 |
| 1966 | 76 | 千吨 | 2026-9 |
| 1965 | 67 | 千吨 | 2026-9 |
| 1964 | 62 | 千吨 | 2026-9 |