condition	mean	min	max
4 h after light	7.61504	1.98982	13.2854
8 h after light	6.14077	2.08821	9.19523
12 h after light	5.20007	3.18335	8.2758
4 h after dark	5.61811	4.50988	7.71196
8 h after dark	5.438463333333333	3.3042	7.40021
12 h after dark	7.033586666666667	4.78643	8.68927