condition mean min max 4 h after light 0.010805 0.0 0.02161 8 h after light 0.01172445 0.0 0.0234489 12 h after light 0.01069165 0.0 0.0213833 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