condition	mean	min	max
4 h after light	4.894705	3.59667	6.19274
8 h after light	6.42841	6.14906	6.70776
12 h after light	7.059985	6.5114	7.60857
4 h after dark	9.289203333333333	8.58055	9.88557
8 h after dark	6.54444	6.07534	7.01851
12 h after dark	7.061803333333334	5.97737	8.93157