condition	mean	min	max
4 h after light	8.393653333333333	8.17804	8.559989999999999
8 h after light	8.4178	8.157580000000001	8.617289999999999
12 h after light	8.40602	8.105960000000001	8.58024
4 h after dark	8.427283333333333	8.14666	8.73639
8 h after dark	8.516136666666666	8.294880000000001	8.63541
12 h after dark	8.568566666666667	8.312619999999999	8.70087