condition	mean	min	max
4 h after light	6.17834	5.39704	6.95964
8 h after light	6.118245	5.99429	6.2422
12 h after light	6.259715	5.49321	7.02622
4 h after dark	7.34317	6.95893	7.72741
8 h after dark	6.906874999999999	6.40647	7.40728
12 h after dark	7.317444999999999	7.15658	7.47831