condition	mean	min	max
4 h after light	7.51971	7.0916	7.76392
8 h after light	8.008013333333333	7.90165	8.121789999999999
12 h after light	9.5568	9.470369999999999	9.61537
4 h after dark	9.521686666666668	9.327060000000001	9.833219999999999
8 h after dark	8.832686666666666	8.71411	8.95778
12 h after dark	8.07943	7.76111	8.36375