condition	mean	min	max
4 h after light	8.835053333333333	8.80487	8.889389999999999
8 h after light	8.876293333333333	8.76929	8.99943
12 h after light	8.93109	8.84723	8.981119999999999
4 h after dark	8.77691	8.63979	8.85031
8 h after dark	9.108396666666666	9.05728	9.19287
12 h after dark	9.168956666666666	9.131160000000001	9.24439