| 年度 | 数值 | 单位 | 发布日期 |
| 1992 | 234 | 千吨 | 2026-9 |
| 1991 | 214 | 千吨 | 2026-9 |
| 1990 | 243 | 千吨 | 2026-9 |
| 1989 | 216 | 千吨 | 2026-9 |
| 1988 | 211 | 千吨 | 2026-9 |
| 1987 | 217 | 千吨 | 2026-9 |
| 1986 | 225 | 千吨 | 2026-9 |
| 1985 | 176 | 千吨 | 2026-9 |
| 1984 | 180 | 千吨 | 2026-9 |
| 1983 | 176 | 千吨 | 2026-9 |
| 1982 | 179 | 千吨 | 2026-9 |
| 1981 | 178 | 千吨 | 2026-9 |
| 1980 | 155 | 千吨 | 2026-9 |
| 1979 | 128 | 千吨 | 2026-9 |
| 1978 | 150 | 千吨 | 2026-9 |
| 1977 | 140 | 千吨 | 2026-9 |
| 1976 | 127 | 千吨 | 2026-9 |
| 1975 | 132 | 千吨 | 2026-9 |
| 1974 | 113 | 千吨 | 2026-9 |
| 1973 | 112 | 千吨 | 2026-9 |
| 1972 | 103 | 千吨 | 2026-9 |
| 1971 | 95 | 千吨 | 2026-9 |
| 1970 | 92 | 千吨 | 2026-9 |
| 1969 | 100 | 千吨 | 2026-9 |
| 1968 | 93 | 千吨 | 2026-9 |
| 1967 | 85 | 千吨 | 2026-9 |
| 1966 | 78 | 千吨 | 2026-9 |
| 1965 | 75 | 千吨 | 2026-9 |
| 1964 | 77 | 千吨 | 2026-9 |
| 1963 | 81 | 千吨 | 2026-9 |
| 1962 | 81 | 千吨 | 2026-9 |
| 1961 | 85 | 千吨 | 2026-9 |
| 1960 | 84 | 千吨 | 2026-9 |