condition	mean	min	max
4 h after light	3.9	3.9	3.9
8 h after light	3.15	2.2	4.1
12 h after light	1.65	0.7	2.6
4 h after dark	3.9	3.3	4.5
8 h after dark	9.15	5.3	13.0
12 h after dark	4.45	4.2	4.7