xper,xns,xew,xco
0.100000001 , 293.810547 , 163.787949 , 892.650024
0.200000003 , 105.272171 , 62.2818069 , 1031.25000
0.300000012 , 157.239807 , 56.5786438 , 1031.25000
0.500000000 , 47.5133362 , 46.9272499 , 1031.25000
1.00000000 , 19.2309208 , 9.16976643 , 562.650024
2.00000000 , 1.51872933 , 0.910637617 , 281.325012
3.00000000 , 0.634368598 , 0.384547204 , 187.688004