condition	mean	min	max
4 h after light	5.8	5.8	5.8
8 h after light	6.05	5.0	7.1
12 h after light	6.0	6.0	6.0
4 h after dark	9.75	6.6	12.9
8 h after dark	4.25	4.1	4.4
12 h after dark	6.2	5.9	6.5