Export Sales for May 20-26, 2022  Wheat:  Net sales 700 metric tons (MT) for 2021/2022 were down noticeably from the previous week and down 98 percent from the prior 4-week average.  Corn:  Net sales of 185,800 MT for 2021/2022 were up 23 percent from the previous week, but down 52 percent from the prior 4-week average.  Soybeans:  Net sales of 111,600 MT for 2021/2022--a marketing-year low--were down 60 percent from the previous week and 77 percent from the prior 4-week average.  Soybean Cake and Meal:  Net sales of 188,900 MT for 2021/2022 were up 18 percent from the previous week, but down 13 percent from the prior 4-week average.  Soybean Oil:  Net sales of 4,200 MT for 2021/2022 we...