Wheat:  Net sales of 175,800 metric tons for 2019/2020 were down 14 percent from the previous week and 39 percent from the prior 4-week average. Corn:  Net sales of 884,200 MT for 2019/2020 were down 18 percent from the previous week and 10 percent from the prior 4-week average.   Soybeans:  Net sales of 1,205,000 MT for 2019/2020 were up 99 percent from the previous week and 80 percent from the prior 4-week average.  Soybean Cake and Meal:    Net sales of 198,800 MT for 2019/2020 were up 96 percent from the previous week and 59 percent from the prior 4-week average. Soybean Oil:  Net sales of 62,100 MT for 2019/2020 were primarily for South Korea (22,000 MT), China (20,000 MT), Guatemala (6,...