xper,xns,xew,xco
0.100000001 , 0.320307046 , 0.259465277 , 892.650024
0.200000003 , 0.405901968 , 0.556693494 , 1031.25000
0.300000012 , 0.264804363 , 0.326417536 , 1031.25000
0.500000000 , 0.224791616 , 0.292134970 , 1031.25000
1.00000000 , 0.245446324 , 0.202115610 , 562.650024
2.00000000 , 4.54608984E-02 , 3.77628244E-02 , 281.325012
3.00000000 , 1.94453448E-02 , 1.59040894E-02 , 187.688004