xper,xns,xew,xco
0.100000001 , 0.601794362 , 0.537040114 , 892.650024
0.200000003 , 0.952391446 , 0.831752419 , 1031.25000
0.300000012 , 1.24529731 , 0.985027969 , 1031.25000
0.500000000 , 1.28390217 , 1.30163991 , 1031.25000
1.00000000 , 0.502189517 , 0.632036269 , 562.650024
2.00000000 , 0.122051492 , 0.109878987 , 281.325012
3.00000000 , 3.33437137E-02 , 3.55566479E-02 , 187.688004