condition	mean	min	max
4 h after light	3.2	3.2	3.2
8 h after light	4.75	3.8	5.7
12 h after light	6.55	5.3	7.8
4 h after dark	10.05	8.1	12.0
8 h after dark	16.15	5.1	27.2
12 h after dark	2.55	1.0	4.1