condition	mean	min	max
4 h after light	5.1	5.1	5.1
8 h after light	13.65	7.3	20.0
12 h after light	2.3	2.3	2.3
4 h after dark	3.05	1.1	5.0
8 h after dark	8.65	2.5	14.8
12 h after dark	2.45	2.1	2.8