xper,xns,xew,xco
0.100000001 , 20.9107857 , 14.6573696 , 892.650024
0.200000003 , 30.2185993 , 22.5175037 , 1031.25000
0.300000012 , 38.4804878 , 20.1819859 , 1031.25000
0.500000000 , 10.9478073 , 3.70840216 , 1031.25000
1.00000000 , 1.73017848 , 0.485134065 , 562.650024
2.00000000 , 0.366300613 , 0.105623312 , 281.325012
3.00000000 , 0.149234906 , 4.57195863E-02 , 187.688004