condition	mean	min	max
3 h after light	6.371526666666667	2.70574	8.98679
7 h after light	6.20091	2.66773	9.48863
11 h after light	6.7510975	3.01296	8.55691
2 h after dark	6.710069166666667	2.72165	8.63335
6 h after dark	6.3696633333333335	2.97495	8.44763
10 h after dark	6.56647	1.94946	8.92975