1              -0.01369227               0.00762812
           2              -0.00250521               0.01171255
           4               0.00207328               0.01616118
           8               0.03921950               0.02441418
          16               0.08068505               0.04008535
          32               0.12020689               0.04337982
          64               0.28088598               0.06170495
         128               0.37198056               0.08070102
         256               0.88464146               0.10032293
         512               1.88011692               0.17407931
        1024               3.90540638               0.24180653
        2048               7.82208586               0.30472391
        4096              14.36928109               0.43000794