1              -0.00030026               0.00026899
           2              -0.00028655               0.00037772
           4              -0.00073888               0.00053997
           8              -0.00094138               0.00087183
          16              -0.00091422               0.00124266
          32              -0.00118733               0.00173565
          64              -0.00151319               0.00213486
         128              -0.00442190               0.00280441
         256              -0.00241475               0.00351012
         512              -0.01695288               0.00475445
        1024              -0.01470908               0.00614639
        2048              -0.03235479               0.00881600