xper,xns,xew,xco
0.100000001 , 293.813263 , 163.788528 , 892.650024
0.200000003 , 105.269432 , 62.2812271 , 1031.25000
0.300000012 , 157.236877 , 56.5792580 , 1031.25000
0.500000000 , 47.5096512 , 46.9278984 , 1031.25000
1.00000000 , 19.2279110 , 9.17064095 , 562.650024
2.00000000 , 1.52139294 , 0.911478043 , 281.325012
3.00000000 , 0.637170017 , 0.385545135 , 187.688004