xper,xns,xew,xco
0.100000001 , 0.451011330 , 0.798676491 , 892.650024
0.200000003 , 0.546503425 , 0.446341664 , 1031.25000
0.300000012 , 0.754957914 , 0.708872616 , 1031.25000
0.500000000 , 1.36966693 , 0.925980389 , 1031.25000
1.00000000 , 0.509810627 , 0.262442678 , 562.650024
2.00000000 , 0.115399010 , 0.114244618 , 281.325012
3.00000000 , 4.97576296E-02 , 7.25422874E-02 , 187.688004