condition	mean	min	max
4 h after light	9.585929	9.368883	9.802975
8 h after light	8.6894515	8.44138	8.937523
12 h after light	9.0382175	8.937523	9.138912
4 h after dark	8.621077	8.511548	8.730606
8 h after dark	8.5980155	7.670001	9.52603
12 h after dark	9.33226	9.33226	9.33226