| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 192 | 千吨 | 2026-9 |
| 1995 | 188 | 千吨 | 2026-9 |
| 1994 | 194 | 千吨 | 2026-9 |
| 1993 | 199 | 千吨 | 2026-9 |
| 1992 | 229 | 千吨 | 2026-9 |
| 1991 | 212 | 千吨 | 2026-9 |
| 1990 | 175 | 千吨 | 2026-9 |
| 1989 | 184 | 千吨 | 2026-9 |
| 1988 | 264 | 千吨 | 2026-9 |
| 1987 | 298 | 千吨 | 2026-9 |
| 1986 | 251 | 千吨 | 2026-9 |
| 1985 | 228 | 千吨 | 2026-9 |
| 1984 | 227 | 千吨 | 2026-9 |
| 1983 | 188 | 千吨 | 2026-9 |
| 1982 | 148 | 千吨 | 2026-9 |
| 1981 | 134 | 千吨 | 2026-9 |
| 1980 | 136 | 千吨 | 2026-9 |
| 1979 | 167 | 千吨 | 2026-9 |
| 1978 | 154 | 千吨 | 2026-9 |
| 1977 | 113 | 千吨 | 2026-9 |
| 1976 | 112 | 千吨 | 2026-9 |
| 1975 | 97 | 千吨 | 2026-9 |
| 1974 | 88 | 千吨 | 2026-9 |
| 1973 | 100 | 千吨 | 2026-9 |
| 1972 | 90 | 千吨 | 2026-9 |
| 1971 | 86 | 千吨 | 2026-9 |
| 1970 | 97 | 千吨 | 2026-9 |
| 1969 | 102 | 千吨 | 2026-9 |
| 1968 | 101 | 千吨 | 2026-9 |
| 1967 | 91 | 千吨 | 2026-9 |
| 1966 | 83 | 千吨 | 2026-9 |
| 1965 | 80 | 千吨 | 2026-9 |
| 1964 | 79 | 千吨 | 2026-9 |