condition	mean	min	max
4 h after light	4.5	4.5	4.5
8 h after light	2.65	1.4	3.9
12 h after light	6.8	5.1	8.5
4 h after dark	4.55	3.9	5.2
8 h after dark	6.65	3.8	9.5
12 h after dark	5.5	5.3	5.7