quartiles {38, 40, 41, 42, 42, 43, 44, 45, 45, 48, 50, 54, 56, 57, 57, 61, 63, 64, 64, 65, 65, 65, 66, 66, 68, 68, 69, 69, 70, 70, 70, 71, 71, 72, 73, 73, 73, 74, 77, 78}