xper,xns,xew,xco
0.100000001 , 0.791939557 , 0.822151005 , 892.650024
0.200000003 , 1.25653636 , 1.50011230 , 1031.25000
0.300000012 , 1.78115737 , 1.80639505 , 1031.25000
0.500000000 , 2.02143073 , 3.84987378 , 1031.25000
1.00000000 , 1.12295365 , 0.898508191 , 562.650024
2.00000000 , 0.495686471 , 0.654590428 , 281.325012
3.00000000 , 0.166472316 , 0.317215979 , 187.688004