xper,xns,xew,xco
0.100000001 , 28.7428207 , 33.5005302 , 1083.50000
0.200000003 , 27.2977772 , 35.6775322 , 1250.00000
0.300000012 , 10.2114267 , 18.8996220 , 1250.00000
0.500000000 , 7.38301897 , 7.33400059 , 1250.00000
1.00000000 , 2.26510167 , 2.87589788 , 700.000000
2.00000000 , 0.840295315 , 0.486932904 , 350.000000
3.00000000 , 0.304908782 , 0.238418952 , 233.500000