xper,xns,xew,xco
0.100000001 , 0.523754299 , 0.315912426 , 892.650024
0.200000003 , 0.543337822 , 0.315010756 , 1031.25000
0.300000012 , 0.590523064 , 0.555188239 , 1031.25000
0.500000000 , 0.924599111 , 0.706039011 , 1031.25000
1.00000000 , 0.687857985 , 0.703693151 , 562.650024
2.00000000 , 0.384765416 , 0.200095132 , 281.325012
3.00000000 , 0.177608982 , 8.53901431E-02 , 187.688004