condition	mean	min	max
4 h after light	3.68767	3.24868	4.12666
8 h after light	3.6323299999999996	3.58966	3.675
12 h after light	4.49061	4.43771	4.54351
4 h after dark	6.220855	5.80502	6.63669
8 h after dark	6.12688	5.83122	6.42254
12 h after dark	5.05489	4.81681	5.29297