condition mean min max 4 h after light 2.6006799999999997 2.28475 2.91661 8 h after light 1.96855 1.89664 2.04046 12 h after light 1.68552 1.66222 1.70882 4 h after dark 2.057795 1.79231 2.32328 8 h after dark 1.482345 1.41783 1.54686 12 h after dark 2.239695 1.99775 2.48164