condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.176528 0.0 0.353056 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0390145 0.0 0.078029 12 h after dark 0.0 0.0 0.0