list(x = structure(.Data = c(    80, 27, 89,
                                     80, 27, 88,
                                     75, 25, 90,
                                     62, 24, 87,
                                     62, 22, 87,
                                     62, 23, 87,
                                     62, 24, 93,
                                     62, 24, 93,
                                     58, 23, 87,
                                     58, 18, 80,
                                     58, 18, 89,
                                     58, 17, 88,
                                     58, 18, 82,
                                     58, 19, 93,
                                     50, 18, 89,
                                     50, 18, 86,
                                     50, 19, 72,
                                     50, 19, 79,
                                     50, 20, 80,
                                     56, 20, 82,
                                     70, 20, 91), .Dim = c(21, 3)))