xper,xns,xew,xco
0.100000001 , 52.8419647 , 25.5898399 , 892.650024
0.200000003 , 161.666000 , 54.9305153 , 1031.25000
0.300000012 , 86.6656799 , 38.4032211 , 1031.25000
0.500000000 , 18.8079376 , 6.35102797 , 1031.25000
1.00000000 , 4.64401627 , 0.978939950 , 562.650024
2.00000000 , 0.611826301 , 0.237338141 , 281.325012
3.00000000 , 0.425091296 , 0.114284128 , 187.688004