condition	mean	min	max
4 h after light	7.599335	6.63055	8.56812
8 h after light	5.8757649999999995	5.74615	6.00538
12 h after light	9.03804	8.34031	9.73577
4 h after dark	11.647735	9.99937	13.2961
8 h after dark	8.59653	8.45765	8.73541
12 h after dark	8.797080000000001	8.77783	8.81633