Group        Calculated # ± 1.96 S.E.            Actual Number

   1                    291.3 ± 55.3                                393
  2                    334.7 ± 39.64                              341
  3                    402 ± 95.63                                 394
  4                    251.3 ± 42.45                              261
  5                    233.8 ± 37.14                              374
  6                    285.6 ± 37.14                              258
  7                    383.79 ± 254.29                          502
  8                    392 ± 92.86                                 435
  9                    572 ± 159.2                                 667
10                    410.42 ± 99.94                            410
11                    424.5 ± 98.98                              404
12                    1466.7 ± 636.6                           1565