condition	mean	min	max
4 h after light	9.576146666666666	9.4386	9.79241
8 h after light	9.159429999999999	9.060139999999999	9.34907
12 h after light	9.29261	9.19705	9.36588
4 h after dark	9.38269	9.12625	9.57954
8 h after dark	9.600876666666666	9.58884	9.61467
12 h after dark	9.835026666666666	9.68603	9.91682