condition	mean	min	max
4 h after light	6.925455	6.40258	7.44833
8 h after light	2.7436	2.67964	2.80756
12 h after light	4.84607	3.18903	6.50311
4 h after dark	8.36542	6.46514	10.2657
8 h after dark	4.900095	4.48313	5.31706
12 h after dark	6.19733	5.26862	7.12604