condition	mean	min	max
4 h after light	5.92531	4.50777	7.34285
8 h after light	18.3513	17.3971	19.3055
12 h after light	6.9700050000000005	5.81317	8.12684
4 h after dark	6.92588	6.29531	7.43299
8 h after dark	4.2025	3.77549	4.48126
12 h after dark	3.771916666666667	3.44916	3.93959