condition	mean	min	max
4 h after light	7.139736666666667	7.06728	7.249280000000001
8 h after light	6.929796666666666	6.86278	7.05457
12 h after light	7.10962	6.85847	7.3425199999999995
4 h after dark	7.073733333333334	6.92696	7.246810000000001
8 h after dark	7.0723	7.0530800000000005	7.08218
12 h after dark	7.035850000000001	6.849260000000001	7.23296