xper,xns,xew,xco
0.100000001 , 24.5125389 , 18.5630360 , 1083.50000
0.200000003 , 51.0312881 , 26.2923985 , 1250.00000
0.300000012 , 25.5784473 , 17.0509720 , 1250.00000
0.500000000 , 7.10424519 , 6.01672316 , 1250.00000
1.00000000 , 2.49116802 , 1.20774817 , 700.000000
2.00000000 , 0.495935827 , 0.215739742 , 350.000000
3.00000000 , 0.225951940 , 9.57674831E-02 , 233.500000