xper,xns,xew,xco
0.100000001 , 20.9105854 , 14.6568489 , 892.650024
0.200000003 , 30.2194424 , 22.5174923 , 1031.25000
0.300000012 , 38.4805756 , 20.1823063 , 1031.25000
0.500000000 , 10.9476948 , 3.70832062 , 1031.25000
1.00000000 , 1.73031783 , 0.485068679 , 562.650024
2.00000000 , 0.366523445 , 0.105473638 , 281.325012
3.00000000 , 0.149371266 , 4.56761196E-02 , 187.688004