condition	mean	min	max
4 h after light	8.6	8.6	8.6
8 h after light	6.6	3.3	9.9
12 h after light	9.65	4.4	14.9
4 h after dark	6.95	4.9	9.0
8 h after dark	6.75	4.6	8.9
12 h after dark	12.05	9.7	14.4