condition	mean	min	max
4 h after light	11.1	11.1	11.1
8 h after light	7.95	4.9	11.0
12 h after light	6.4	3.2	9.6
4 h after dark	6.35	3.1	9.6
8 h after dark	2.55	1.9	3.2
12 h after dark	14.1	11.5	16.7