xper,xns,xew,xco
0.100000001 , 38.3406906 , 23.8486347 , 892.650024
0.200000003 , 16.5321960 , 11.8504801 , 1031.25000
0.300000012 , 6.39501476 , 4.76881552 , 1031.25000
0.500000000 , 3.07144260 , 2.11618018 , 1031.25000
1.00000000 , 0.829531610 , 0.458164930 , 562.650024
2.00000000 , 0.183395341 , 0.104761846 , 281.325012
3.00000000 , 0.109533995 , 5.67193776E-02 , 187.688004