condition	mean	min	max
4 h after light	5.0	5.0	5.0
8 h after light	2.55	2.4	2.7
12 h after light	4.75	4.6	4.9
4 h after dark	2.3	2.0	2.6
8 h after dark	8.3	4.7	11.9
12 h after dark	4.9	3.9	5.9