condition	mean	min	max
4 h after light	2.5	2.5	2.5
8 h after light	2.8	1.5	4.1
12 h after light	9.5	2.8	16.2
4 h after dark	3.95	2.9	5.0
8 h after dark	17.05	3.2	30.9
12 h after dark	4.35	2.3	6.4