a   b   i x                   y
pan pan 1 0.3467901443380824  1000000.3467901443
eks pan 2 0.7586799647899636  1000000.7586799648
wye wye 3 0.20460330576630303 1000000.2046033058
eks wye 4 0.38139939387114097 1000000.3813993939
