condition	mean	min	max
4 h after light	9.02835	8.153812	9.902888
8 h after light	8.425740000000001	8.40623	8.44525
12 h after light	8.1694675	7.845784	8.493151
4 h after dark	7.525313499999999	7.050755	7.999872
8 h after dark	8.129026	7.790504	8.467548
12 h after dark	8.27989	8.27989	8.27989