Export Sales for April 15-21, 2022. Wheat:  Net sales of 32,300 metric tons (MT) for 2021/2022 were up 23 percent from the previous week, but down 65 percent from the prior 4-week average. Corn:  Net sales of 866,800 MT for 2021/2022 were down 1 percent from the previous week and 5 percent from the prior 4-week average.  Soybeans:  Net sales of 481,300 MT for 2021/2022 were up 5 percent from the previous week, but down 37 percent from the prior 4-week average.  Soybean Cake and Meal:  Net sales of 203,000 MT for 2021/2022 were up noticeably from the previous week and from the prior 4-week average.  Soybean Oil:  Net sales of 3,500 MT for 2021/2022 were up noticeably from the previous week, but do...