condition	mean	min	max
4 h after light	3.9423399999999997	3.81192	4.07276
8 h after light	3.33089	3.18273	3.47905
12 h after light	5.0285150000000005	4.39784	5.65919
4 h after dark	7.0605	6.67016	7.45084
8 h after dark	7.5709599999999995	7.39879	7.74313
12 h after dark	6.337125	5.62433	7.04992