condition	mean	min	max
4 h after light	8.6151315	8.387326	8.842937
8 h after light	8.695021	8.387326	9.002716
12 h after light	8.399605000000001	8.085679	8.713531
4 h after dark	8.2813205	8.175315	8.387326
8 h after dark	8.2813205	8.175315	8.387326
12 h after dark	7.946346	7.946346	7.946346