condition	mean	min	max
4 h after light	3.95282	3.63348	4.27216
8 h after light	4.58381	4.47014	4.69748
12 h after light	3.03794	2.60342	3.47246
4 h after dark	3.25784	3.0351	3.48058
8 h after dark	4.24204	3.24033	5.24375
12 h after dark	4.43696	4.05623	4.81769