xper,xns,xew,xco
0.100000001 , 51.3167992 , 25.6820660 , 892.650024
0.200000003 , 166.047791 , 54.1742973 , 1031.25000
0.300000012 , 88.6594772 , 37.7644844 , 1031.25000
0.500000000 , 21.5040493 , 6.15349483 , 1031.25000
1.00000000 , 4.48612547 , 1.06590402 , 562.650024
2.00000000 , 1.11833179 , 0.304106712 , 281.325012
3.00000000 , 0.496064186 , 0.135627255 , 187.688004