condition	mean	min	max
4 h after light	9.6	9.6	9.6
8 h after light	23.0	5.6	40.4
12 h after light	7.5	6.9	8.1
4 h after dark	8.7	8.3	9.1
8 h after dark	4.9	3.7	6.1
12 h after dark	5.95	5.9	6.0