condition mean min max 0 h after light 0.02548935 0.0 0.0509787 4 h after light 0.0 0.0 0.0 8 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 0.02485625 0.0 0.0497125