| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2004 | 244 | 千吨 | 2026-9 |
| 2003 | 245 | 千吨 | 2026-9 |
| 2002 | 247 | 千吨 | 2026-9 |
| 2001 | 242 | 千吨 | 2026-9 |
| 2000 | 243 | 千吨 | 2026-9 |
| 1999 | 242 | 千吨 | 2026-9 |
| 1998 | 235 | 千吨 | 2026-9 |
| 1997 | 236 | 千吨 | 2026-9 |
| 1996 | 239 | 千吨 | 2026-9 |
| 1995 | 253 | 千吨 | 2026-9 |
| 1994 | 253 | 千吨 | 2026-9 |
| 1993 | 267 | 千吨 | 2026-9 |
| 1992 | 267 | 千吨 | 2026-9 |
| 1991 | 270 | 千吨 | 2026-9 |
| 1990 | 274 | 千吨 | 2026-9 |
| 1989 | 281 | 千吨 | 2026-9 |
| 1988 | 281 | 千吨 | 2026-9 |
| 1987 | 283 | 千吨 | 2026-9 |
| 1986 | 290 | 千吨 | 2026-9 |
| 1985 | 288 | 千吨 | 2026-9 |
| 1984 | 280 | 千吨 | 2026-9 |
| 1983 | 295 | 千吨 | 2026-9 |
| 1982 | 291 | 千吨 | 2026-9 |
| 1981 | 282 | 千吨 | 2026-9 |
| 1980 | 282 | 千吨 | 2026-9 |
| 1979 | 267 | 千吨 | 2026-9 |
| 1978 | 267 | 千吨 | 2026-9 |
| 1977 | 265 | 千吨 | 2026-9 |
| 1976 | 250 | 千吨 | 2026-9 |
| 1975 | 239 | 千吨 | 2026-9 |
| 1974 | 242 | 千吨 | 2026-9 |
| 1973 | 244 | 千吨 | 2026-9 |
| 1972 | 232 | 千吨 | 2026-9 |
| 1971 | 222 | 千吨 | 2026-9 |
| 1970 | 211 | 千吨 | 2026-9 |
| 1969 | 201 | 千吨 | 2026-9 |
| 1968 | 192 | 千吨 | 2026-9 |
| 1967 | 180 | 千吨 | 2026-9 |
| 1966 | 174 | 千吨 | 2026-9 |
| 1965 | 168 | 千吨 | 2026-9 |
| 1964 | 168 | 千吨 | 2026-9 |
| 1963 | 157 | 千吨 | 2026-9 |
| 1962 | 150 | 千吨 | 2026-9 |
| 1961 | 142 | 千吨 | 2026-9 |
| 1960 | 134 | 千吨 | 2026-9 |