condition	mean	min	max
4 h after light	12.51435	8.4887	16.54
8 h after light	14.37105	13.7455	14.9966
12 h after light	12.0709	10.3922	13.7496
4 h after dark	9.71559	7.15037	11.7901
8 h after dark	8.926446666666667	8.38105	9.79042
12 h after dark	7.793663333333333	4.47211	9.51919