condition	mean	min	max
4 h after light	6.725926666666666	6.36076	7.16113
8 h after light	7.20179	6.84753	7.5031
12 h after light	7.32762	6.83185	7.67944
4 h after dark	6.756460000000001	6.4962800000000005	7.01203
8 h after dark	6.702816666666666	6.50516	7.06363
12 h after dark	6.59352	6.39769	6.8262