condition	mean	min	max
0 h after light	7.34807	6.55085	8.14529
4 h after light	6.28841	4.92029	7.65653
8 h after light	6.12507	5.78063	6.46951
4 h after dark	6.378550000000001	6.36597	6.39113
8 h after dark	6.946185	6.15274	7.73963
12 h after dark	7.175325000000001	6.38815	7.9625