| 年度 | 数值 | 单位 | 发布日期 |
| 1996 | 1850 | 千吨 | 2026-9 |
| 1995 | 1819 | 千吨 | 2026-9 |
| 1994 | 1894 | 千吨 | 2026-9 |
| 1993 | 1800 | 千吨 | 2026-9 |
| 1992 | 1711 | 千吨 | 2026-9 |
| 1991 | 1967 | 千吨 | 2026-9 |
| 1990 | 2236 | 千吨 | 2026-9 |
| 1989 | 2067 | 千吨 | 2026-9 |
| 1988 | 2026 | 千吨 | 2026-9 |
| 1987 | 2027 | 千吨 | 2026-9 |
| 1986 | 2075 | 千吨 | 2026-9 |
| 1985 | 2256 | 千吨 | 2026-9 |
| 1984 | 2357 | 千吨 | 2026-9 |
| 1983 | 2295 | 千吨 | 2026-9 |
| 1982 | 2184 | 千吨 | 2026-9 |
| 1981 | 2030 | 千吨 | 2026-9 |
| 1980 | 2038 | 千吨 | 2026-9 |
| 1979 | 1997 | 千吨 | 2026-9 |
| 1978 | 1908 | 千吨 | 2026-9 |
| 1977 | 1867 | 千吨 | 2026-9 |
| 1976 | 1846 | 千吨 | 2026-9 |
| 1975 | 1773 | 千吨 | 2026-9 |
| 1974 | 1751 | 千吨 | 2026-9 |
| 1973 | 1691 | 千吨 | 2026-9 |
| 1972 | 1653 | 千吨 | 2026-9 |
| 1971 | 1496 | 千吨 | 2026-9 |
| 1970 | 1529 | 千吨 | 2026-9 |
| 1969 | 1771 | 千吨 | 2026-9 |
| 1968 | 1848 | 千吨 | 2026-9 |
| 1967 | 1849 | 千吨 | 2026-9 |
| 1966 | 2041 | 千吨 | 2026-9 |
| 1965 | 2146 | 千吨 | 2026-9 |
| 1964 | 2129 | 千吨 | 2026-9 |