condition	mean	min	max
4 h after light	7.72606	7.5596	7.97352
8 h after light	8.960373333333333	8.82441	9.05285
12 h after light	9.02735	8.8836	9.15068
4 h after dark	8.63523	8.39663	8.76287
8 h after dark	8.478776666666667	8.32388	8.69293
12 h after dark	8.13779	8.0208	8.210460000000001