condition	mean	min	max
4 h after light	9.7	9.7	9.7
8 h after light	7.75	1.5	14.0
12 h after light	1.45	1.4	1.5
4 h after dark	5.65	1.3	10.0
8 h after dark	1.6	1.1	2.1
12 h after dark	2.35	1.5	3.2