xper,xns,xew,xco
0.100000001 , 61.4068069 , 28.0879002 , 892.650024
0.200000003 , 53.3560677 , 13.1923704 , 1031.25000
0.300000012 , 34.5192451 , 14.3990698 , 1031.25000
0.500000000 , 15.9568272 , 12.3858232 , 1031.25000
1.00000000 , 4.12586021 , 3.92874718 , 562.650024
2.00000000 , 0.783440292 , 0.520264506 , 281.325012
3.00000000 , 0.403540552 , 0.232085213 , 187.688004