condition	mean	min	max
4 h after light	7.72274	7.59053	7.91027
8 h after light	8.1333	8.05413	8.24507
12 h after light	8.1681	8.0356	8.29425
4 h after dark	7.92962	7.737410000000001	8.0824
8 h after dark	7.643233333333333	7.52865	7.81272
12 h after dark	7.02301	6.68225	7.2744