condition	mean	min	max
0 h after light	8.512995	8.41617	8.60982
4 h after light	6.412465	6.24991	6.57502
8 h after light	7.829705000000001	7.3329	8.32651
4 h after dark	8.684035	7.87646	9.49161
8 h after dark	8.991430000000001	8.42957	9.55329
12 h after dark	7.7717849999999995	7.28116	8.26241