xper,xns,xew,xco
0.100000001 , 0.451026142 , 0.798918664 , 892.650024
0.200000003 , 0.546484470 , 0.446833283 , 1031.25000
0.300000012 , 0.754967570 , 0.708749115 , 1031.25000
0.500000000 , 1.36968017 , 0.925911248 , 1031.25000
1.00000000 , 0.509806216 , 0.262519747 , 562.650024
2.00000000 , 0.115402736 , 0.114452437 , 281.325012
3.00000000 , 4.97490279E-02 , 7.27933869E-02 , 187.688004