condition	mean	min	max
4 h after light	22.0	22.0	22.0
8 h after light	1.65	1.5	1.8
12 h after light	5.95	4.9	7.0
4 h after dark	5.2	2.6	7.8
8 h after dark	12.75	3.2	22.3
12 h after dark	4.95	3.4	6.5