condition	mean	min	max
4 h after light	1.2	1.2	1.2
8 h after light	1.25	1.0	1.5
12 h after light	1.95	1.6	2.3
4 h after dark	2.2	1.2	3.2
8 h after dark	2.0	1.5	2.5
12 h after dark	4.85	1.6	8.1