condition	mean	min	max
4 h after light	7.969822000000001	7.632305	8.307339
8 h after light	8.011232	7.847117	8.175347
12 h after light	7.674026	7.500935	7.847117
4 h after dark	7.6625385	7.47796	7.847117
8 h after dark	7.847117	7.847117	7.847117
12 h after dark	8.867276	8.867276	8.867276