condition	mean	min	max
4 h after light	3.3	3.3	3.3
8 h after light	6.5	3.3	9.7
12 h after light	4.85	3.7	6.0
4 h after dark	5.9	5.5	6.3
8 h after dark	18.65	9.6	27.7
12 h after dark	8.15	6.4	9.9