condition	mean	min	max
4 h after light	8.249011	8.175347	8.322675
8 h after light	8.657583500000001	8.531076	8.784091
12 h after light	8.59063	8.335843	8.845417
4 h after dark	8.396255	7.62088	9.17163
8 h after dark	7.403568	7.155995	7.651141
12 h after dark	7.531716	7.531716	7.531716