condition	mean	min	max
4 h after light	1.0	1.0	1.0
8 h after light	1.95	1.6	2.3
12 h after light	7.05	0.6	13.5
4 h after dark	19.15	2.3	36.0
8 h after dark	6.75	4.7	8.8
12 h after dark	2.8	2.4	3.2