| 中国玉米进出口统计（千吨） | ||
| 年度 | 进口量 | 出口量 |
| 1983 | 211 | 6 |
| 1984 | 6 | 95 |
| 1985 | 9.1 | 633.7 |
| 1986 | 58.8 | 564.0 |
| 1987 | 154.2 | 392.0 |
| 1988 | 10.9 | 391.2 |
| 1989 | 6.8 | 350.2 |
| 1990 | 36.9 | 340.4 |
| 1991 | 0.1 | 778.2 |
| 1992 | ... | 1034.0 |
| 1993 | 0.1 | 1110.0 |
| 1994 | 0.2 | 874.9 |
| 1995 | 526.4 | 11.5 |
| 1996 | 44.7 | 23.8 |
| 1997 | 0.3 | 667.1 |
| 1998 | 25.2 | 469.2 |
| 1999 | 7.9 | 433.3 |
| 2000 | 0.3 | 1047.9 |
| 2001 | 3.9 | 600.0 |
| 2002 | 0.8 | 1167.5 |
| 2003 | 0.1 | 1639.1 |