condition	mean	min	max
4 h after light	8.503605	7.13626	9.87095
8 h after light	5.279525	4.36223	6.19682
12 h after light	5.84131	5.18706	6.49556
4 h after dark	8.695816666666666	7.84	9.82063
8 h after dark	10.662756666666667	8.51315	13.793
12 h after dark	9.94324	9.13504	10.866