condition	mean	min	max
4 h after light	6.656766666666667	6.46521	6.81045
8 h after light	6.665796666666666	6.2843	6.96167
12 h after light	7.455406666666667	7.12498	7.63284
4 h after dark	7.09596	6.699380000000001	7.32632
8 h after dark	7.343520000000001	7.05359	7.610310000000001
12 h after dark	7.337093333333334	7.0404100000000005	7.591139999999999