condition	mean	min	max
4 h after light	3.2	3.2	3.2
8 h after light	6.9	3.3	10.5
12 h after light	3.95	2.6	5.3
4 h after dark	8.7	5.0	12.4
8 h after dark	6.6	4.0	9.2
12 h after dark	8.1	3.3	12.9