condition	mean	min	max
4 h after light	6.1	6.1	6.1
8 h after light	6.25	4.9	7.6
12 h after light	2.95	2.2	3.7
4 h after dark	3.65	2.5	4.8
8 h after dark	4.95	2.6	7.3
12 h after dark	2.0999999999999996	1.9	2.3