| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1996 | 518 | 千吨 | 2026-9 |
| 1995 | 490 | 千吨 | 2026-9 |
| 1994 | 490 | 千吨 | 2026-9 |
| 1993 | 490 | 千吨 | 2026-9 |
| 1992 | 500 | 千吨 | 2026-9 |
| 1991 | 900 | 千吨 | 2026-9 |
| 1990 | 1099 | 千吨 | 2026-9 |
| 1989 | 1202 | 千吨 | 2026-9 |
| 1988 | 1702 | 千吨 | 2026-9 |
| 1987 | 1776 | 千吨 | 2026-9 |
| 1986 | 1839 | 千吨 | 2026-9 |
| 1985 | 1710 | 千吨 | 2026-9 |
| 1984 | 2105 | 千吨 | 2026-9 |
| 1983 | 2171 | 千吨 | 2026-9 |
| 1982 | 2000 | 千吨 | 2026-9 |
| 1981 | 1939 | 千吨 | 2026-9 |
| 1980 | 2533 | 千吨 | 2026-9 |
| 1979 | 2933 | 千吨 | 2026-9 |
| 1978 | 3139 | 千吨 | 2026-9 |
| 1977 | 2780 | 千吨 | 2026-9 |
| 1976 | 2989 | 千吨 | 2026-9 |
| 1975 | 3291 | 千吨 | 2026-9 |
| 1974 | 3518 | 千吨 | 2026-9 |
| 1973 | 3328 | 千吨 | 2026-9 |
| 1972 | 3377 | 千吨 | 2026-9 |
| 1971 | 3584 | 千吨 | 2026-9 |
| 1970 | 3723 | 千吨 | 2026-9 |
| 1969 | 2227 | 千吨 | 2026-9 |
| 1968 | 2525 | 千吨 | 2026-9 |
| 1967 | 2321 | 千吨 | 2026-9 |
| 1966 | 1872 | 千吨 | 2026-9 |
| 1965 | 1167 | 千吨 | 2026-9 |
| 1964 | 4592 | 千吨 | 2026-9 |