  11  20   4  15     0.00000     0.41151                                    20Na
  11  21   5  23     0.00000     1.43670                                    21Na
  11  22   8  17     0.00000     0.65504                                    22Na
  11  23   8  15     0.00000     1.70595                                    23Na
  11  24   8  16     0.03207     0.68127                                    24Na
  11  25   8  16     0.00000     1.34804                                    25Na
  11  26   8  15     0.00000    -0.01927                                    26Na
