condition	mean	min	max
4 h after light	4.601295	3.92462	5.27797
8 h after light	5.832545	5.69526	5.96983
12 h after light	6.01861	5.92927	6.10795
4 h after dark	8.788233333333332	8.40169	9.26058
8 h after dark	6.552056666666666	6.48205	6.67031
12 h after dark	5.271636666666667	5.15835	5.41066