condition	mean	min	max
4 h after light	8.207363333333333	7.925730000000001	8.363389999999999
8 h after light	8.429086666666667	8.08469	8.639330000000001
12 h after light	8.575853333333333	8.37314	8.70905
4 h after dark	8.21231	8.08366	8.403319999999999
8 h after dark	8.001423333333333	7.843539999999999	8.14977
12 h after dark	7.7654700000000005	7.69653	7.84807