condition	mean	min	max
4 h after light	6.005476666666667	5.863090000000001	6.11687
8 h after light	6.149179999999999	5.95716	6.3948599999999995
12 h after light	6.20975	6.09825	6.39706
4 h after dark	6.0702	5.90808	6.32493
8 h after dark	6.114526666666666	5.923830000000001	6.2843599999999995
12 h after dark	6.135026666666667	6.06616	6.25325