Default Method             1

                                      Obs              N_PI           N

                                        1      3.1400000000           1
                                        2      6.2800000000           2
                                        3      9.4200000000           3
                                        4     12.5700000000           4
                                        5     15.7100000000           5
                                        6     18.8500000000           6
                                        7     21.9900000000           7
                                        8     25.1300000000           8
                                        9     28.2700000000           9
                                       10     31.4200000000          10