xper,xns,xew,xco
0.100000001 , 86.1891556 , 44.6744461 , 1083.50000
0.200000003 , 55.7111168 , 30.4465942 , 1250.00000
0.300000012 , 27.1095676 , 13.1171656 , 1250.00000
0.500000000 , 9.39677238 , 5.59741402 , 1250.00000
1.00000000 , 2.02380323 , 1.27724659 , 700.000000
2.00000000 , 0.489039600 , 0.247001857 , 350.000000
3.00000000 , 0.203155458 , 0.115856364 , 233.500000