condition	mean	min	max
4 h after light	56.563900000000004	51.1441	61.9837
8 h after light	20.0134	19.0365	20.9903
12 h after light	6.1309249999999995	6.06918	6.19267
4 h after dark	6.036205000000001	5.29865	6.77376
8 h after dark	10.25874	9.81548	10.702
12 h after dark	23.57965	23.3231	23.8362