xper,xns,xew,xco
0.100000001 , 0.904391229 , 0.590966702 , 892.650024
0.200000003 , 0.630237520 , 0.626075387 , 1031.25000
0.300000012 , 0.349649787 , 0.348360986 , 1031.25000
0.500000000 , 0.244736210 , 0.232796177 , 1031.25000
1.00000000 , 0.131503031 , 0.119752802 , 562.650024
2.00000000 , 0.104758255 , 9.90472659E-02 , 281.325012
3.00000000 , 7.36196786E-02 , 5.88438474E-02 , 187.688004