| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 155 | 千吨 | 2026-9 |
| 1995 | 146 | 千吨 | 2026-9 |
| 1994 | 129 | 千吨 | 2026-9 |
| 1993 | 123 | 千吨 | 2026-9 |
| 1992 | 120 | 千吨 | 2026-9 |
| 1991 | 127 | 千吨 | 2026-9 |
| 1990 | 126 | 千吨 | 2026-9 |
| 1989 | 134 | 千吨 | 2026-9 |
| 1988 | 148 | 千吨 | 2026-9 |
| 1987 | 140 | 千吨 | 2026-9 |
| 1986 | 136 | 千吨 | 2026-9 |
| 1985 | 127 | 千吨 | 2026-9 |
| 1984 | 122 | 千吨 | 2026-9 |
| 1983 | 119 | 千吨 | 2026-9 |
| 1982 | 119 | 千吨 | 2026-9 |
| 1981 | 116 | 千吨 | 2026-9 |
| 1980 | 112 | 千吨 | 2026-9 |
| 1979 | 105 | 千吨 | 2026-9 |
| 1978 | 89 | 千吨 | 2026-9 |
| 1977 | 95 | 千吨 | 2026-9 |
| 1976 | 97 | 千吨 | 2026-9 |
| 1975 | 87 | 千吨 | 2026-9 |
| 1974 | 82 | 千吨 | 2026-9 |
| 1973 | 81 | 千吨 | 2026-9 |
| 1972 | 77 | 千吨 | 2026-9 |
| 1971 | 74 | 千吨 | 2026-9 |
| 1970 | 63 | 千吨 | 2026-9 |
| 1969 | 62 | 千吨 | 2026-9 |
| 1968 | 62 | 千吨 | 2026-9 |
| 1967 | 54 | 千吨 | 2026-9 |
| 1966 | 57 | 千吨 | 2026-9 |
| 1965 | 57 | 千吨 | 2026-9 |
| 1964 | 56 | 千吨 | 2026-9 |