condition	mean	min	max
4 h after light	4.5	4.5	4.5
8 h after light	5.35	3.8	6.9
12 h after light	2.65	1.8	3.5
4 h after dark	5.65	2.0	9.3
8 h after dark	6.3	3.9	8.7
12 h after dark	4.9	3.2	6.6