condition	mean	min	max
4 h after light	6.2	6.2	6.2
8 h after light	21.3	6.9	35.7
12 h after light	7.05	6.3	7.8
4 h after dark	4.7	2.9	6.5
8 h after dark	6.95	4.4	9.5
12 h after dark	3.6	2.7	4.5