condition	mean	min	max
4 h after light	1.8	1.8	1.8
8 h after light	7.05	1.6	12.5
12 h after light	2.45	1.9	3.0
4 h after dark	2.35	2.2	2.5
8 h after dark	4.95	4.9	5.0
12 h after dark	0.8	0.5	1.1