xper,xns,xew,xco
0.100000001 , 25.5768089 , 15.5909624 , 892.650024
0.200000003 , 18.5777740 , 16.6547089 , 1031.25000
0.300000012 , 13.4880247 , 21.8480797 , 1031.25000
0.500000000 , 11.5138569 , 10.5371742 , 1031.25000
1.00000000 , 3.56327295 , 4.17662764 , 562.650024
2.00000000 , 0.766469955 , 1.23131442 , 281.325012
3.00000000 , 0.303354144 , 0.365326196 , 187.688004