xper,xns,xew,xco
0.100000001 , 0.972769380 , 1.35352290 , 1083.50000
0.200000003 , 1.72223270 , 1.91740954 , 1250.00000
0.300000012 , 3.21271682 , 3.42531395 , 1250.00000
0.500000000 , 2.50677633 , 3.67601347 , 1250.00000
1.00000000 , 0.683275878 , 0.539358974 , 700.000000
2.00000000 , 0.248266980 , 0.138554320 , 350.000000
3.00000000 , 0.120203532 , 6.22616932E-02 , 233.500000