condition	mean	min	max
4 h after light	8.90054	7.26438	10.5367
8 h after light	14.8185	14.6486	14.9884
12 h after light	18.75305	15.9534	21.5527
4 h after dark	14.435400000000001	14.2131	14.6577
8 h after dark	11.22015	10.756	11.6843
12 h after dark	10.159075	9.49245	10.8257