condition	mean	min	max
0 h after light	5.147930000000001	5.10736	5.1885
4 h after light	5.46208	4.91892	6.00524
8 h after light	8.48484	8.22089	8.74879
4 h after dark	7.970805	7.31131	8.6303
8 h after dark	6.06656	5.60118	6.53194
12 h after dark	4.1852800000000006	3.87488	4.49568