condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.3399485 0.0 0.560118 10 h after light 0.1257945 0.0 0.439782 14 h after light 0.097452 0.0 0.317674 18 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0