xper,xns,xew,xco
0.100000001 , 21.5196438 , 14.2439327 , 892.650024
0.200000003 , 28.5266933 , 5.67377996 , 1031.25000
0.300000012 , 13.1530781 , 6.54106808 , 1031.25000
0.500000000 , 14.1305828 , 6.29210758 , 1031.25000
1.00000000 , 5.33670664 , 1.90860856 , 562.650024
2.00000000 , 0.964886665 , 0.643670499 , 281.325012
3.00000000 , 0.341867238 , 0.270239294 , 187.688004