condition	mean	min	max
4 h after light	3.7	3.7	3.7
8 h after light	5.8	5.5	6.1
12 h after light	20.25	10.5	30.0
4 h after dark	16.15	5.5	26.8
8 h after dark	34.3	32.1	36.5
12 h after dark	4.95	4.9	5.0