condition	mean	min	max
4 h after light	0.6668276666666667	0.0	1.66613
8 h after light	4.68567	0.8931	8.2874
12 h after light	6.15684	4.59543	7.42476
4 h after dark	7.88362	5.30148	9.49227
8 h after dark	5.57439	2.70833	8.8126
12 h after dark	2.97572	2.02058	4.17544