xper,xns,xew,xco
0.100000001 , 0.786765039 , 0.580205142 , 1083.50000
0.200000003 , 0.727659285 , 0.714449644 , 1250.00000
0.300000012 , 1.14355111 , 1.11990416 , 1250.00000
0.500000000 , 0.768475890 , 0.939904511 , 1250.00000
1.00000000 , 1.26766002 , 1.92597485 , 700.000000
2.00000000 , 0.405697316 , 0.513576090 , 350.000000
3.00000000 , 0.136212289 , 0.220275179 , 233.500000