xper,xns,xew,xco
0.100000001 , 2.19517446 , 2.67705131 , 892.650024
0.200000003 , 3.04823279 , 3.20344925 , 1031.25000
0.300000012 , 3.84363174 , 5.33377457 , 1031.25000
0.500000000 , 4.48783302 , 3.32156801 , 1031.25000
1.00000000 , 1.30767250 , 1.74810421 , 562.650024
2.00000000 , 0.536593139 , 1.17883205 , 281.325012
3.00000000 , 0.431342155 , 0.310334891 , 187.688004