condition	mean	min	max
4 h after light	2.0299750000000003	1.83975	2.2202
8 h after light	2.05888	1.94235	2.17541
12 h after light	2.249135	2.21406	2.28421
4 h after dark	3.48329	3.01019	3.95639
8 h after dark	2.380925	2.24127	2.52058
12 h after dark	2.4586	1.95192	2.96528