| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998 | 149 | 千吨 | 2026-9 |
| 1997 | 155 | 千吨 | 2026-9 |
| 1996 | 120 | 千吨 | 2026-9 |
| 1995 | 112 | 千吨 | 2026-9 |
| 1994 | 113 | 千吨 | 2026-9 |
| 1993 | 115 | 千吨 | 2026-9 |
| 1992 | 116 | 千吨 | 2026-9 |
| 1991 | 119 | 千吨 | 2026-9 |
| 1990 | 119 | 千吨 | 2026-9 |
| 1989 | 132 | 千吨 | 2026-9 |
| 1988 | 135 | 千吨 | 2026-9 |
| 1987 | 128 | 千吨 | 2026-9 |
| 1986 | 122 | 千吨 | 2026-9 |
| 1985 | 119 | 千吨 | 2026-9 |
| 1984 | 120 | 千吨 | 2026-9 |
| 1983 | 118 | 千吨 | 2026-9 |
| 1982 | 96 | 千吨 | 2026-9 |
| 1981 | 89 | 千吨 | 2026-9 |
| 1980 | 98 | 千吨 | 2026-9 |
| 1979 | 91 | 千吨 | 2026-9 |
| 1978 | 80 | 千吨 | 2026-9 |
| 1977 | 86 | 千吨 | 2026-9 |
| 1976 | 80 | 千吨 | 2026-9 |
| 1975 | 88 | 千吨 | 2026-9 |
| 1974 | 63 | 千吨 | 2026-9 |
| 1973 | 51 | 千吨 | 2026-9 |
| 1972 | 52 | 千吨 | 2026-9 |
| 1971 | 46 | 千吨 | 2026-9 |
| 1970 | 42 | 千吨 | 2026-9 |
| 1969 | 39 | 千吨 | 2026-9 |
| 1968 | 34 | 千吨 | 2026-9 |
| 1967 | 29 | 千吨 | 2026-9 |
| 1966 | 208 | 千吨 | 2026-9 |
| 1965 | 175 | 千吨 | 2026-9 |
| 1964 | 163 | 千吨 | 2026-9 |