condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0091896 0.0 0.0183792 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0