condition	mean	min	max
4 h after light	4.13815	3.9335	4.3428
8 h after light	3.77285	3.09714	4.44856
12 h after light	5.212225	5.04345	5.381
4 h after dark	6.750415	5.93019	7.57064
8 h after dark	6.42009	6.09288	6.7473
12 h after dark	6.08103	5.73211	6.42995