condition	mean	min	max
4 h after light	8.985455	8.64072	9.33019
8 h after light	9.330684999999999	8.98719	9.67418
12 h after light	8.576785000000001	8.30908	8.84449
4 h after dark	12.32425	12.0063	12.6422
8 h after dark	13.10405	12.491	13.7171
12 h after dark	10.08694	9.82018	10.3537