condition	mean	min	max
4 h after light	6.618385	6.15106	7.08571
8 h after light	7.983915	7.60494	8.36289
12 h after light	7.66051	7.32416	7.99686
4 h after dark	8.537963333333334	8.10035	9.285
8 h after dark	8.481953333333333	7.55536	9.08651
12 h after dark	7.0166	6.31735	8.06305