xper,xns,xew,xco
0.100000001 , 0.787031710 , 0.579872608 , 1083.50000
0.200000003 , 0.727909803 , 0.714092433 , 1250.00000
0.300000012 , 1.14369321 , 1.11958027 , 1250.00000
0.500000000 , 0.768348396 , 0.939540923 , 1250.00000
1.00000000 , 1.26757777 , 1.92630112 , 700.000000
2.00000000 , 0.405732661 , 0.513227582 , 350.000000
3.00000000 , 0.135939047 , 0.220607847 , 233.500000