| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 115 | 千吨 | 2026-9 |
| 1995 | 142 | 千吨 | 2026-9 |
| 1994 | 148 | 千吨 | 2026-9 |
| 1993 | 127 | 千吨 | 2026-9 |
| 1992 | 125 | 千吨 | 2026-9 |
| 1991 | 101 | 千吨 | 2026-9 |
| 1990 | 70 | 千吨 | 2026-9 |
| 1989 | 75 | 千吨 | 2026-9 |
| 1988 | 103 | 千吨 | 2026-9 |
| 1987 | 85 | 千吨 | 2026-9 |
| 1986 | 80 | 千吨 | 2026-9 |
| 1985 | 55 | 千吨 | 2026-9 |
| 1984 | 50 | 千吨 | 2026-9 |
| 1983 | 69 | 千吨 | 2026-9 |
| 1982 | 59 | 千吨 | 2026-9 |
| 1981 | 46 | 千吨 | 2026-9 |
| 1980 | 82 | 千吨 | 2026-9 |
| 1979 | 67 | 千吨 | 2026-9 |
| 1978 | 76 | 千吨 | 2026-9 |
| 1977 | 30 | 千吨 | 2026-9 |
| 1976 | 44 | 千吨 | 2026-9 |
| 1975 | 42 | 千吨 | 2026-9 |
| 1974 | 25 | 千吨 | 2026-9 |
| 1973 | 26 | 千吨 | 2026-9 |
| 1972 | 13 | 千吨 | 2026-9 |
| 1971 | 17 | 千吨 | 2026-9 |
| 1970 | 4 | 千吨 | 2026-9 |
| 1969 | 3 | 千吨 | 2026-9 |
| 1968 | 3 | 千吨 | 2026-9 |
| 1967 | 5 | 千吨 | 2026-9 |
| 1966 | 4 | 千吨 | 2026-9 |
| 1965 | 17 | 千吨 | 2026-9 |
| 1964 | 6 | 千吨 | 2026-9 |