condition mean min max 2 h after light 0.9026421666666666 0.285934 1.44334 6 h after light 1.2845528333333334 0.476488 2.81407 10 h after light 2.56931 1.46512 4.74303 14 h after light 2.028605 1.0799 4.06688 18 h after light 1.3908835 0.509114 2.95563 2 h after dark 1.9726851666666667 0.696003 5.00797