condition mean min max 0 h after light 1.468865 1.42937 1.50836 4 h after light 1.34521 1.16307 1.52735 8 h after light 0.9588795 0.788459 1.1293 4 h after dark 0.68191 0.643138 0.720682 8 h after dark 0.8876995 0.722699 1.0527 12 h after dark 1.12707 1.09922 1.15492