condition	mean	min	max
4 h after light	3.8	3.8	3.8
8 h after light	7.15	6.3	8.0
12 h after light	6.4	6.3	6.5
4 h after dark	6.65	6.4	6.9
8 h after dark	6.6000000000000005	3.9	9.3
12 h after dark	3.75	3.5	4.0