13 13.564  0.006 2   2                                                          
14 14.861  0.005 2   2                                                          
24 13.214  0.000 3   2                                                          
26 14.575  0.013 2   2                                                          
28 13.950  0.000 3   2                                                          
30 12.508  0.136 2   2