condition	mean	min	max
4 h after light	4.533765000000001	4.1359	4.93163
8 h after light	3.0838200000000002	3.01404	3.1536
12 h after light	5.523985	5.4765	5.57147
4 h after dark	7.600506666666667	7.32205	7.90169
8 h after dark	8.71971	8.23523	9.65402
12 h after dark	6.8353	6.59232	7.20997