xper,xns,xew,xco
0.100000001 , 60.4672089 , 49.6587753 , 649.200012
0.200000003 , 112.929794 , 67.3197556 , 750.000000
0.300000012 , 96.6855621 , 44.3097038 , 750.000000
0.500000000 , 40.2195778 , 14.2592554 , 750.000000
1.00000000 , 10.3612604 , 7.64244366 , 399.899994
2.00000000 , 2.73149180 , 2.12960243 , 200.100006
3.00000000 , 1.09721696 , 0.778578341 , 133.199997