condition	mean	min	max
4 h after light	1.2	1.2	1.2
8 h after light	3.95	3.7	4.2
12 h after light	2.55	2.1	3.0
4 h after dark	2.25	1.6	2.9
8 h after dark	2.9000000000000004	2.2	3.6
12 h after dark	2.25	1.9	2.6