xper,xns,xew,xco
0.100000001 , 86.1890106 , 44.6745872 , 1083.50000
0.200000003 , 55.7109718 , 30.4467335 , 1250.00000
0.300000012 , 27.1097069 , 13.1170282 , 1250.00000
0.500000000 , 9.39664555 , 5.59733963 , 1250.00000
1.00000000 , 2.02366495 , 1.27731407 , 700.000000
2.00000000 , 0.488915473 , 0.247154161 , 350.000000
3.00000000 , 0.203000590 , 0.116041772 , 233.500000