xper,xns,xew,xco
0.100000001 , 12.9573574 , 8.16333103 , 1083.50000
0.200000003 , 30.0777626 , 23.2262897 , 1250.00000
0.300000012 , 27.3549156 , 16.7846222 , 1250.00000
0.500000000 , 13.2174683 , 6.05220461 , 1250.00000
1.00000000 , 2.15650988 , 2.06424141 , 700.000000
2.00000000 , 0.587160289 , 0.366958022 , 350.000000
3.00000000 , 0.287274569 , 0.152656808 , 233.500000