condition	mean	min	max
4 h after light	7.39184	6.51437	8.26931
8 h after light	8.17128	7.78658	8.55598
12 h after light	6.455875000000001	5.81153	7.10022
4 h after dark	7.8509150000000005	6.87653	8.8253
8 h after dark	7.48388	7.28059	7.68717
12 h after dark	8.274094999999999	7.99146	8.55673