condition	mean	min	max
4 h after light	8.59558	8.27093	8.91734
8 h after light	9.322416666666667	9.11395	9.48093
12 h after light	8.958096666666666	8.81757	9.14194
4 h after dark	8.661890000000001	8.47658	8.801810000000001
8 h after dark	8.521996666666666	8.31865	8.70668
12 h after dark	8.175970000000001	8.125010000000001	8.20353