condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.02483465 0.021106 0.0285633 12 h after light 0.03176095 0.0272795 0.0362424 4 h after dark 0.01228215 0.0 0.0245643 8 h after dark 0.04214985 0.0232466 0.0610531 12 h after dark 0.0630966 0.0205892 0.105604