condition	mean	min	max
4 h after light	8.73967	7.93961	9.53973
8 h after light	6.12202	5.84982	6.39422
12 h after light	6.244705	5.78804	6.70137
4 h after dark	8.228133333333332	7.62545	8.59639
8 h after dark	8.174616666666667	7.82438	8.4545
12 h after dark	7.51431	7.42317	7.56589