condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.222171 0.0 0.378689 6 h after dark 0.0 0.0 0.0 9 h after dark 0.10152666666666667 0.0 0.30458 12 h after dark 0.14099366666666666 0.0 0.422981