10 4080 1 1.00000000
12 4006 1 0.43560000
14 4004 1 0.18974736
15 3961 1 0.12523326
17 3905 1 0.05455161
18 3817 1 0.03600406

# gawk '/^ *[0-9]/{ d = $1; $(4) = sprintf("%.8f", exp(log(0.66)*(d-10))); print; }'