xper,xns,xew,xco
0.100000001 , 0.910760164 , 0.522425354 , 1083.50000
0.200000003 , 1.18061626 , 0.563795030 , 1250.00000
0.300000012 , 0.648824692 , 0.285993189 , 1250.00000
0.500000000 , 0.577012777 , 0.293265849 , 1250.00000
1.00000000 , 0.608625233 , 0.314335316 , 700.000000
2.00000000 , 0.849609017 , 0.605872571 , 350.000000
3.00000000 , 2.15941906 , 0.753366351 , 233.500000