condition	mean	min	max
4 h after light	8.7770355	8.415159	9.138912
8 h after light	8.559711	7.789007	9.330415
12 h after light	9.3608105	9.122445	9.599176
4 h after dark	9.1261035	8.921792	9.330415
8 h after dark	9.320434	9.033226	9.607642
12 h after dark	8.416379	8.416379	8.416379