Wheat:  Net sales of 661,700 metric tons for 2019/2020--a marketing year high--were up 11 percent from the previous week and 37 percent from the prior 4-week average.   Corn:  Net sales reductions of 2,500 MT resulting in increases for Mexico (13,500 MT, including decreases of 49,100 MT), El Salvador (9,200 MT, including 8,000 MT switched from Guatemala, 6,500 MT switched from Nicaragua, 4,000 MT switched from Honduras, and decreases of 400 MT), Taiwan (5,700 MT, including decreases of 100 MT), Nicaragua (3,400 MT, including 6,000 MT switched from Costa Rica and 3,800 MT switched from El Salvador), and Costa Rica (3,400 MT), were partially offset by reductions for Japan (21,900 MT) and unknown destinations (19,400 MT).&...