xper,xns,xew,xco
0.100000001 , 3.73473454 , 4.29125977 , 973.799988
0.200000003 , 4.40699339 , 5.83075380 , 1125.00000
0.300000012 , 4.59059572 , 4.28543091 , 1125.00000
0.500000000 , 1.84892249 , 1.89552581 , 1125.00000
1.00000000 , 0.362235188 , 0.310180068 , 675.000000
2.00000000 , 9.59863961E-02 , 7.50585273E-02 , 337.500000
3.00000000 , 4.61503975E-02 , 2.17994899E-02 , 225.000000