y x1 x2 25.9 42 2 29.5 62 2 27.9 40 1 25.9 54 1 29.9 42 1 29.9 56 1 30.9 51 2 28.9 32 1 35.9 32 2 31.0 30 1 30.9 30 1 36.9 32 3 41.9 46 3 40.5 50 2 43.9 22 4 37.5 17 2 37.9 23 2 44.5 40 3 37.9 22 2 38.9 50 3