Wheat:  Net sales of 114,500 metric tons for delivery in the 2018/2019 were up 26 percent from the previous week, but down 52 percent from the prior 4-week average.    Corn:  Net sales of 553,300 MT for 2018/2019 were up 92 percent from the previous week, but down 15 percent from the prior 4-week average.  Soybeans:  Net sales of 370,900 MT for 2018/2019 were reported for Germany (122,000 MT), Indonesia (95,300 MT, including 68,000 MT switched from unknown destinations and decreases of 800 MT), unknown destinations (38,500 MT), Japan (28,500 MT, including 14,300 MT switched from unknown destinations and decreases of 400 MT), and Taiwan (23,900 MT).   For 2019/2020, net sales of 303,400 MT were...