condition	mean	min	max
4 h after light	2.775045	2.41755	3.13254
8 h after light	2.5495	2.15816	2.94084
12 h after light	2.389215	2.02316	2.75527
4 h after dark	3.789295	3.70821	3.87038
8 h after dark	3.176965	2.81963	3.5343
12 h after dark	3.377555	3.18248	3.57263