xper,xns,xew,xco
0.100000001 , 0.791866302 , 0.822170198 , 892.650024
0.200000003 , 1.25649750 , 1.50012839 , 1031.25000
0.300000012 , 1.78112042 , 1.80637538 , 1031.25000
0.500000000 , 2.02139139 , 3.84989262 , 1031.25000
1.00000000 , 1.12299049 , 0.898518026 , 562.650024
2.00000000 , 0.495669305 , 0.654579520 , 281.325012
3.00000000 , 0.166498929 , 0.317209721 , 187.688004