Exporters for the period May 7-May 13, 2021. Wheat:  Net sales of 121,000 metric tons (MT) for 2020/2021 were up noticeably from the previous week and up 21 percent from the prior 4-week average.  Corn:  Net sales of 277,600 MT for 2020/2021 were down noticeably from the previous week, but up 19 percent from the prior 4-week average.  Soybeans:  Net sales of 84,200 MT for 2020/2021 were down 11 percent from the previous week and 45 percent from the prior 4-week average.  Soybean Cake and Meal:  Net sales of 189,400 MT for 2020/2021 were up noticeably from the previous week and up 34 percent from the prior 4-week average.  Soybean Oil:  Net sales reductions of 4,500 MT for 2020/2021--a market...