condition	mean	min	max
4 h after light	4.00558	3.17399	4.83717
8 h after light	3.3157550000000002	3.16054	3.47097
12 h after light	5.93247	4.60811	7.25683
4 h after dark	14.191980000000001	7.80356	20.5804
8 h after dark	8.380505	7.91259	8.84842
12 h after dark	7.7995350000000006	6.12541	9.47366