xper,xns,xew,xco
0.100000001 , 2.37931800 , 1.74730206 , 892.650024
0.200000003 , 2.52721715 , 2.11985517 , 1031.25000
0.300000012 , 3.10012341 , 2.90320325 , 1031.25000
0.500000000 , 5.20352602 , 4.97083044 , 1031.25000
1.00000000 , 5.88983059 , 3.70854712 , 562.650024
2.00000000 , 2.61841202 , 1.95928061 , 281.325012
3.00000000 , 1.94252479 , 1.43184960 , 187.688004