condition	mean	min	max
4 h after light	4.69817	3.45504	6.01523
8 h after light	4.020886666666667	1.32731	6.95674
12 h after light	4.74379	2.99822	7.14787
4 h after dark	6.55912	4.24722	8.32717
8 h after dark	6.4026233333333336	4.89446	7.78195
12 h after dark	6.8997399999999995	5.76127	8.92385