xper,xns,xew,xco
0.100000001 , 1.36699831 , 0.758200049 , 973.799988
0.200000003 , 0.374123961 , 0.368592352 , 1125.00000
0.300000012 , 0.475241959 , 0.390159488 , 1125.00000
0.500000000 , 0.519709289 , 0.453847498 , 1125.00000
1.00000000 , 0.943933249 , 1.00193501 , 675.000000
2.00000000 , 0.620832086 , 0.391595095 , 337.500000
3.00000000 , 0.432898819 , 0.222816586 , 225.000000