condition mean min max 4 h after light 0.0069155 0.0 0.013831 8 h after light 0.0 0.0 0.0 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 0.00243062 0.0 0.00729186