condition mean min max 4 h after light 15.29312 12.775623 17.810617 8 h after light 15.5520845 14.956176 16.147993 12 h after light 15.083952499999999 14.140433 16.027472 4 h after dark 19.7714995 14.515109 25.02789 8 h after dark 28.281812000000002 11.422698 45.140926 12 h after dark 17.679042 17.679042 17.679042