condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.07682 0.0 0.23046 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.13812366666666667 0.0 0.414371 12 h after dark 0.0 0.0 0.0