xper,xns,xew,xco
0.100000001 , 28.7452240 , 33.4998131 , 1083.50000
0.200000003 , 27.2953892 , 35.6768036 , 1250.00000
0.300000012 , 10.2090225 , 18.9003468 , 1250.00000
0.500000000 , 7.38063669 , 7.33327532 , 1250.00000
1.00000000 , 2.26754856 , 2.87662172 , 700.000000
2.00000000 , 0.843795061 , 0.486211866 , 350.000000
3.00000000 , 0.301615089 , 0.244522840 , 233.500000