condition	mean	min	max
4 h after light	8.13899	6.52844	9.74954
8 h after light	10.574770000000001	9.87594	11.2736
12 h after light	9.143145	8.22059	10.0657
4 h after dark	11.98682	9.72316	13.8599
8 h after dark	14.4732	11.777	16.5201
12 h after dark	11.443536666666667	9.44141	12.7153