Export Sales and Shipments for April 7-13, 2023   Wheat:  Net sales of 259,000 metric tons (MT) for 2022/2023 were up 91 percent from the previous week and 93 percent from the prior 4-week average. Export shipments of 202,800 MT were down 28 percent from the previous week and 29 percent from the prior 4-week average.  Corn:  Net sales of 312,400 MT for 2022/2023 were down 41 percent from the previous week and 79 percent from the prior 4-week average. Export shipments of 1,298,500 MT were up 42 percent from the previous week and 27 percent from the prior 4-week average.  Soybeans:  Net sales of 100,100 MT for 2022/2023 were down 73 percent from the previous week and 58 percent from the prior 4-week avera...