Wheat:  Net sales of 646,300 metric tons for 2019/2020 were down 7 percent from the previous week, but up 49 percent from the prior 4-week average.  Corn:  Net sales of 1,234,700 MT for 2019/2020 were up 23 percent from the previous week and 99 percent from the prior 4-week average.  Soybeans:  Net sales of 469,700 MT for 2019/2020 were down 41 percent from the previous week and 11 percent from the prior 4-week average.   Soybean Cake and Meal:    Net sales of 438,800 MT for 2019/2020 were down 32 percent from the previous week, but up 48 percent from the prior 4-week average.  Soybean Oil:  Net sales of 29,400 MT for 2019/2020 resulting in increases primarily for Peru (11,500 MT),...