xper,xns,xew,xco
0.100000001 , 0.532438934 , 0.327623516 , 892.650024
0.200000003 , 0.562620223 , 0.335502118 , 1031.25000
0.300000012 , 0.555068076 , 0.366283894 , 1031.25000
0.500000000 , 0.530426502 , 0.476423949 , 1031.25000
1.00000000 , 1.24144673 , 1.70409346 , 562.650024
2.00000000 , 0.538701057 , 0.531567514 , 281.325012
3.00000000 , 0.310433388 , 0.256727993 , 187.688004