condition	mean	min	max
4 h after light	3.8	3.8	3.8
8 h after light	3.5	3.0	4.0
12 h after light	3.25	1.3	5.2
4 h after dark	2.05	2.0	2.1
8 h after dark	8.0	1.5	14.5
12 h after dark	22.95	4.8	41.1