| 1         | 2         | 4         | 8
-----|-----------|-----------|-----------|----------
 100 | 0.000862  | 0.000813  | 0.000492  | 0.018057
 250 | 0.016979  | 0.007088  | 0.008280  | 0.023153
 500 | 0.187274  | 0.095052  | 0.083152  | 0.081629
1000 | 2.522172  | 1.221258  | 1.139272  | 1.361240
2000 | 47.200504 | 26.900284 | 19.395751 | 15.864646