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 0.024973366666666667 0.0 0.0393025 12 h after light 0.01022895 0.0 0.0409158 3 h after dark 0.018928900000000002 0.0 0.0567867 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0110547 0.0 0.0331641 12 h after dark 0.0 0.0 0.0