condition	mean	min	max
4 h after light	1.84124	1.74295	1.93953
8 h after light	2.688815	2.50166	2.87597
12 h after light	2.78705	2.78586	2.78824
4 h after dark	5.685925	5.10512	6.26673
8 h after dark	4.593135	4.15552	5.03075
12 h after dark	3.527775	3.21667	3.83888