xper,xns,xew,xco
0.100000001 , 2.19342256 , 2.67687869 , 892.650024
0.200000003 , 3.05058455 , 3.20362282 , 1031.25000
0.300000012 , 3.84051871 , 5.33361483 , 1031.25000
0.500000000 , 4.48957872 , 3.32148027 , 1031.25000
1.00000000 , 1.31054997 , 1.74831951 , 562.650024
2.00000000 , 0.538752496 , 1.17888737 , 281.325012
3.00000000 , 0.431716263 , 0.310537577 , 187.688004