xper,xns,xew,xco
0.100000001 , 1.59084809 , 2.31084108 , 892.650024
0.200000003 , 1.74098873 , 2.46073627 , 1031.25000
0.300000012 , 1.95583785 , 2.57919717 , 1031.25000
0.500000000 , 3.27452159 , 4.41491747 , 1031.25000
1.00000000 , 3.89001560 , 3.65282869 , 562.650024
2.00000000 , 2.37686968 , 2.45197415 , 281.325012
3.00000000 , 1.25283754 , 1.25040710 , 187.688004