xper,xns,xew,xco
0.100000001 , 12.7849998 , 8.85727310 , 1083.50000
0.200000003 , 20.6705170 , 13.5747604 , 1250.00000
0.300000012 , 17.6532784 , 12.7229843 , 1250.00000
0.500000000 , 4.34063196 , 3.66348553 , 1250.00000
1.00000000 , 0.867103994 , 0.810185492 , 700.000000
2.00000000 , 0.728654027 , 0.411916047 , 350.000000
3.00000000 , 0.851044297 , 0.601006746 , 233.500000