condition	mean	min	max
4 h after light	2.854735	2.57164	3.13783
8 h after light	3.48639	3.39719	3.57559
12 h after light	5.88602	5.36987	6.40217
4 h after dark	8.211925	8.19426	8.22959
8 h after dark	7.440185	7.29336	7.58701
12 h after dark	4.713845	4.52619	4.9015