condition	mean	min	max
0 h after light	6.3873999999999995	5.81436	6.96044
4 h after light	4.442915	3.77889	5.10694
8 h after light	4.034785	3.88599	4.18358
4 h after dark	5.612275	4.33336	6.89119
8 h after dark	5.40432	5.01639	5.79225
12 h after dark	6.113049999999999	5.51329	6.71281