| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 234 | 千吨 | 2026-9 |
| 1995 | 252 | 千吨 | 2026-9 |
| 1994 | 243 | 千吨 | 2026-9 |
| 1993 | 260 | 千吨 | 2026-9 |
| 1992 | 203 | 千吨 | 2026-9 |
| 1991 | 219 | 千吨 | 2026-9 |
| 1990 | 213 | 千吨 | 2026-9 |
| 1989 | 211 | 千吨 | 2026-9 |
| 1988 | 194 | 千吨 | 2026-9 |
| 1987 | 212 | 千吨 | 2026-9 |
| 1986 | 198 | 千吨 | 2026-9 |
| 1985 | 201 | 千吨 | 2026-9 |
| 1984 | 243 | 千吨 | 2026-9 |
| 1983 | 203 | 千吨 | 2026-9 |
| 1982 | 198 | 千吨 | 2026-9 |
| 1981 | 187 | 千吨 | 2026-9 |
| 1980 | 173 | 千吨 | 2026-9 |
| 1979 | 144 | 千吨 | 2026-9 |
| 1978 | 132 | 千吨 | 2026-9 |
| 1977 | 123 | 千吨 | 2026-9 |
| 1976 | 114 | 千吨 | 2026-9 |
| 1975 | 100 | 千吨 | 2026-9 |
| 1974 | 93 | 千吨 | 2026-9 |
| 1973 | 83 | 千吨 | 2026-9 |
| 1972 | 74 | 千吨 | 2026-9 |
| 1971 | 69 | 千吨 | 2026-9 |
| 1970 | 66 | 千吨 | 2026-9 |
| 1969 | 60 | 千吨 | 2026-9 |
| 1968 | 64 | 千吨 | 2026-9 |
| 1967 | 78 | 千吨 | 2026-9 |
| 1966 | 77 | 千吨 | 2026-9 |
| 1965 | 73 | 千吨 | 2026-9 |
| 1964 | 81 | 千吨 | 2026-9 |