| 年度 | 数值 | 单位 | 发布日期 |
| 1996 | 125 | 千吨 | 2026-9 |
| 1995 | 102 | 千吨 | 2026-9 |
| 1994 | 104 | 千吨 | 2026-9 |
| 1993 | 109 | 千吨 | 2026-9 |
| 1992 | 99 | 千吨 | 2026-9 |
| 1991 | 100 | 千吨 | 2026-9 |
| 1990 | 101 | 千吨 | 2026-9 |
| 1989 | 97 | 千吨 | 2026-9 |
| 1988 | 96 | 千吨 | 2026-9 |
| 1987 | 84 | 千吨 | 2026-9 |
| 1986 | 94 | 千吨 | 2026-9 |
| 1985 | 91 | 千吨 | 2026-9 |
| 1984 | 89 | 千吨 | 2026-9 |
| 1983 | 88 | 千吨 | 2026-9 |
| 1982 | 86 | 千吨 | 2026-9 |
| 1981 | 86 | 千吨 | 2026-9 |
| 1980 | 87 | 千吨 | 2026-9 |
| 1979 | 82 | 千吨 | 2026-9 |
| 1978 | 76 | 千吨 | 2026-9 |
| 1977 | 74 | 千吨 | 2026-9 |
| 1976 | 74 | 千吨 | 2026-9 |
| 1975 | 74 | 千吨 | 2026-9 |
| 1974 | 67 | 千吨 | 2026-9 |
| 1973 | 66 | 千吨 | 2026-9 |
| 1972 | 66 | 千吨 | 2026-9 |
| 1971 | 62 | 千吨 | 2026-9 |
| 1970 | 61 | 千吨 | 2026-9 |
| 1969 | 59 | 千吨 | 2026-9 |
| 1968 | 53 | 千吨 | 2026-9 |
| 1967 | 56 | 千吨 | 2026-9 |
| 1966 | 53 | 千吨 | 2026-9 |
| 1965 | 52 | 千吨 | 2026-9 |
| 1964 | 52 | 千吨 | 2026-9 |