xper,xns,xew,xco
0.100000001 , 1.28839898 , 1.05847442 , 1083.50000
0.200000003 , 1.25946462 , 1.29920924 , 1250.00000
0.300000012 , 0.940798938 , 0.848301053 , 1250.00000
0.500000000 , 1.48207676 , 1.27086246 , 1250.00000
1.00000000 , 2.49377465 , 1.88102520 , 700.000000
2.00000000 , 0.608552516 , 0.446674377 , 350.000000
3.00000000 , 0.259825438 , 0.136953458 , 233.500000