以下是5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. 
                                          4月            5月            
百万英亩
播种面积           88.9    89.7           NA             97.0 *         
收获面积           81.3    81.4           NA             89.6 *         
蒲式耳
每英亩收获产量     176.4   167.8          NA             178.5 *        
百万蒲式耳
期初库存           2140    2221           NA             2098           
产量               14340   13663          NA             15995          
进口量             28      45             NA             25             
总供应量           16509   15928          NA             18118          
饲料用量           5430    5700           NA             6050           
食品、种子及工业用 6793    6355           NA             6600           
燃料酒精用量       5378    4950           NA             5200           
国内总用量         12223   12055          NA             12650          
出口量             2065    1775           NA             2150           
总消耗量           14288   13830          NA             14800          
期末库存           2221    2098           NA             3318           
农场平均价格       3.61    3.6            NA             3.2