condition	mean	min	max
4 h after light	5.9	5.9	5.9
8 h after light	15.3	8.6	22.0
12 h after light	6.25	4.4	8.1
4 h after dark	35.5	24.4	46.6
8 h after dark	3.95	3.4	4.5
12 h after dark	9.25	0.9	17.6