condition	mean	min	max
0 h after light	6.21198	5.55261	6.87135
4 h after light	4.51414	3.70339	5.32489
8 h after light	3.5158300000000002	2.99235	4.03931
4 h after dark	5.305655	4.17023	6.44108
8 h after dark	6.8676449999999996	6.112	7.62329
12 h after dark	8.071155	7.49839	8.64392