Wheat:    Net sales of 696,000 metric tons for 2019/2020 were up 7 percent from the previous week and 58 percent from the prior 4-week average.   Corn:    Net sales of 1,006,900 MT for 2019/2020 were up 28 percent from the previous week and 92 percent from the prior 4-week average.   Soybeans:    Net sales of 790,000 MT for 2019/2020 were up 23 percent from the previous week and 59 percent from the prior 4-week average.   Soybean Cake and Meal:    Net sales of 641,900 MT for 2019/2020--a marketing-year high--were up 71 percent from the previous week and up noticeably from the prior 4-week average.   Soybean Oil:    Net sales of 55,600 MT for 2019/2...