condition	mean	min	max
4 h after light	7.733316666666667	7.13121	8.16566
8 h after light	7.774996666666667	7.36388	7.98083
12 h after light	7.50183	6.73285	7.89812
4 h after dark	7.85572	7.288130000000001	8.36059
8 h after dark	7.8229033333333335	7.49596	8.160910000000001
12 h after dark	8.10226	7.8653	8.29304