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 0.0084855 0.0 0.0254565 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.005612666666666666 0.0 0.016838 9 h after dark 0.0096201 0.0 0.0288603 12 h after dark 0.0 0.0 0.0