xper,xns,xew,xco
0.100000001 , 0.277077973 , 0.363052040 , 892.650024
0.200000003 , 0.295403093 , 0.414190412 , 1031.25000
0.300000012 , 0.278884023 , 0.462292612 , 1031.25000
0.500000000 , 0.355006009 , 0.599339187 , 1031.25000
1.00000000 , 1.24197996 , 1.14614022 , 562.650024
2.00000000 , 0.393829167 , 0.529851198 , 281.325012
3.00000000 , 0.335901231 , 0.231954128 , 187.688004