xper,xns,xew,xco
0.100000001 , 90.0157242 , 46.0327911 , 1083.50000
0.200000003 , 54.0737572 , 31.3145847 , 1250.00000
0.300000012 , 27.3609428 , 12.9710054 , 1250.00000
0.500000000 , 9.39081860 , 5.60895729 , 1250.00000
1.00000000 , 2.06313348 , 1.27561510 , 700.000000
2.00000000 , 0.501371622 , 0.242003292 , 350.000000
3.00000000 , 0.208020106 , 0.114453070 , 233.500000