condition	mean	min	max
0 h after light	1.721015	1.56367	1.87836
4 h after light	1.51165	1.48678	1.53652
8 h after light	3.992495	3.79717	4.18782
4 h after dark	4.150895	3.36504	4.93675
8 h after dark	2.55118	2.52739	2.57497
12 h after dark	1.816635	1.75744	1.87583