| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 155 | 千吨 | 2026-9 |
| 1995 | 149 | 千吨 | 2026-9 |
| 1994 | 152 | 千吨 | 2026-9 |
| 1993 | 144 | 千吨 | 2026-9 |
| 1992 | 137 | 千吨 | 2026-9 |
| 1991 | 121 | 千吨 | 2026-9 |
| 1990 | 116 | 千吨 | 2026-9 |
| 1989 | 110 | 千吨 | 2026-9 |
| 1988 | 102 | 千吨 | 2026-9 |
| 1987 | 98 | 千吨 | 2026-9 |
| 1986 | 98 | 千吨 | 2026-9 |
| 1985 | 99 | 千吨 | 2026-9 |
| 1984 | 95 | 千吨 | 2026-9 |
| 1983 | 95 | 千吨 | 2026-9 |
| 1982 | 95 | 千吨 | 2026-9 |
| 1981 | 90 | 千吨 | 2026-9 |
| 1980 | 81 | 千吨 | 2026-9 |
| 1979 | 84 | 千吨 | 2026-9 |
| 1978 | 82 | 千吨 | 2026-9 |
| 1977 | 86 | 千吨 | 2026-9 |
| 1976 | 82 | 千吨 | 2026-9 |
| 1975 | 76 | 千吨 | 2026-9 |
| 1974 | 79 | 千吨 | 2026-9 |
| 1973 | 75 | 千吨 | 2026-9 |
| 1972 | 71 | 千吨 | 2026-9 |
| 1971 | 65 | 千吨 | 2026-9 |
| 1970 | 64 | 千吨 | 2026-9 |
| 1969 | 55 | 千吨 | 2026-9 |
| 1968 | 52 | 千吨 | 2026-9 |
| 1967 | 52 | 千吨 | 2026-9 |
| 1966 | 53 | 千吨 | 2026-9 |
| 1965 | 53 | 千吨 | 2026-9 |
| 1964 | 63 | 千吨 | 2026-9 |