condition	mean	min	max
4 h after light	8.1	8.1	8.1
8 h after light	14.950000000000001	4.3	25.6
12 h after light	16.65	12.3	21.0
4 h after dark	5.1	3.3	6.9
8 h after dark	7.8999999999999995	3.1	12.7
12 h after dark	6.05	4.0	8.1