Pedro, Alex, and Jaime are having a three-point contest. Each boy takes six turns and records the number of three-pointers he shoots out of ten shots. Which boy has the highest median of three-point shots?

Pedro: 6, 8, 5, 9, 4, 7
Alex: 9, 5, 5, 9, 5, 3
Jaime: 6, 8, 3, 4, 9, 8