condition	mean	min	max
4 h after light	2.3	2.3	2.3
8 h after light	8.9	4.9	12.9
12 h after light	6.45	2.4	10.5
4 h after dark	4.15	1.3	7.0
8 h after dark	3.25	1.3	5.2
12 h after dark	6.3	1.4	11.2