| 年度 | 数值 | 单位 | 发布日期 |
| 1993 | 95 | 千吨 | 2026-9 |
| 1992 | 100 | 千吨 | 2026-9 |
| 1991 | 126 | 千吨 | 2026-9 |
| 1990 | 110 | 千吨 | 2026-9 |
| 1989 | 108 | 千吨 | 2026-9 |
| 1988 | 93 | 千吨 | 2026-9 |
| 1987 | 114 | 千吨 | 2026-9 |
| 1986 | 112 | 千吨 | 2026-9 |
| 1985 | 156 | 千吨 | 2026-9 |
| 1984 | 146 | 千吨 | 2026-9 |
| 1983 | 142 | 千吨 | 2026-9 |
| 1982 | 150 | 千吨 | 2026-9 |
| 1981 | 150 | 千吨 | 2026-9 |
| 1980 | 163 | 千吨 | 2026-9 |
| 1979 | 150 | 千吨 | 2026-9 |
| 1978 | 150 | 千吨 | 2026-9 |
| 1977 | 144 | 千吨 | 2026-9 |
| 1976 | 149 | 千吨 | 2026-9 |
| 1975 | 164 | 千吨 | 2026-9 |
| 1974 | 129 | 千吨 | 2026-9 |
| 1973 | 134 | 千吨 | 2026-9 |
| 1972 | 105 | 千吨 | 2026-9 |
| 1971 | 119 | 千吨 | 2026-9 |
| 1970 | 118 | 千吨 | 2026-9 |
| 1969 | 127 | 千吨 | 2026-9 |
| 1968 | 122 | 千吨 | 2026-9 |
| 1967 | 106 | 千吨 | 2026-9 |
| 1966 | 100 | 千吨 | 2026-9 |
| 1965 | 101 | 千吨 | 2026-9 |
| 1964 | 99 | 千吨 | 2026-9 |
| 1963 | 109 | 千吨 | 2026-9 |
| 1962 | 117 | 千吨 | 2026-9 |
| 1961 | 107 | 千吨 | 2026-9 |
| 1960 | 99 | 千吨 | 2026-9 |