xper,xns,xew,xco
0.100000001 , 314.145477 , 343.619446 , 1083.50000
0.200000003 , 572.879150 , 575.148010 , 1250.00000
0.300000012 , 1103.07690 , 896.002991 , 1250.00000
0.500000000 , 475.839050 , 623.423584 , 1250.00000
1.00000000 , 137.030151 , 207.892578 , 700.000000
2.00000000 , 49.9016037 , 54.5477867 , 350.000000
3.00000000 , 19.3241596 , 23.8397541 , 233.500000