以下是12月份公布的美国玉米供需平衡表
                   2018/19 2019/20估计值. 2020/21预测值. 2020/21预测值. 
                                          11月           12月           
百万英亩
播种面积           88.9    89.7           91             91             
收获面积           81.3    81.3           82.5           82.5           
蒲式耳
每英亩收获产量     176.4   167.5          175.8          175.8          
百万蒲式耳
期初库存           2140    2221           1995           1995           
产量               14340   13620          14507          14507          
进口量             28      42             25             25             
总供应量           16509   15883          16527          16527          
饲料用量           5429    5827           5700           5700           
食品、种子及工业用 6793    6282           6475           6475           
燃料酒精用量       5378    4852           5050           5050           
国内总用量         12222   12109          12175          12175          
出口量             2066    1778           2650           2650           
总消耗量           14288   13887          14825          14825          
期末库存           2221    1995           1702           1702           
农场平均价格       3.61    3.56           4              4