xper,xns,xew,xco
0.100000001 , 0.325373828 , 0.454588592 , 892.650024
0.200000003 , 0.548724353 , 0.483180493 , 1031.25000
0.300000012 , 0.816375852 , 0.993291974 , 1031.25000
0.500000000 , 1.09464896 , 1.01841843 , 1031.25000
1.00000000 , 0.480041593 , 0.390926719 , 562.650024
2.00000000 , 0.130053252 , 0.115512520 , 281.325012
3.00000000 , 4.52682152E-02 , 6.02822863E-02 , 187.688004