| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 67 | 千吨 | 2026-9 |
| 1997 | 73 | 千吨 | 2026-9 |
| 1996 | 90 | 千吨 | 2026-9 |
| 1995 | 87 | 千吨 | 2026-9 |
| 1994 | 95 | 千吨 | 2026-9 |
| 1993 | 123 | 千吨 | 2026-9 |
| 1992 | 122 | 千吨 | 2026-9 |
| 1991 | 126 | 千吨 | 2026-9 |
| 1990 | 137 | 千吨 | 2026-9 |
| 1989 | 136 | 千吨 | 2026-9 |
| 1988 | 131 | 千吨 | 2026-9 |
| 1987 | 132 | 千吨 | 2026-9 |
| 1986 | 163 | 千吨 | 2026-9 |
| 1985 | 167 | 千吨 | 2026-9 |
| 1984 | 159 | 千吨 | 2026-9 |
| 1983 | 158 | 千吨 | 2026-9 |
| 1982 | 156 | 千吨 | 2026-9 |
| 1981 | 148 | 千吨 | 2026-9 |
| 1980 | 146 | 千吨 | 2026-9 |
| 1979 | 142 | 千吨 | 2026-9 |
| 1978 | 139 | 千吨 | 2026-9 |
| 1977 | 137 | 千吨 | 2026-9 |
| 1976 | 124 | 千吨 | 2026-9 |
| 1975 | 124 | 千吨 | 2026-9 |
| 1974 | 112 | 千吨 | 2026-9 |
| 1973 | 118 | 千吨 | 2026-9 |
| 1972 | 96 | 千吨 | 2026-9 |
| 1971 | 88 | 千吨 | 2026-9 |
| 1970 | 93 | 千吨 | 2026-9 |
| 1969 | 96 | 千吨 | 2026-9 |
| 1968 | 108 | 千吨 | 2026-9 |
| 1967 | 96 | 千吨 | 2026-9 |
| 1966 | 93 | 千吨 | 2026-9 |
| 1965 | 80 | 千吨 | 2026-9 |
| 1964 | 73 | 千吨 | 2026-9 |
| 1963 | 74 | 千吨 | 2026-9 |
| 1962 | 71 | 千吨 | 2026-9 |
| 1961 | 59 | 千吨 | 2026-9 |
| 1960 | 41 | 千吨 | 2026-9 |