condition	mean	min	max
4 h after light	8.197897999999999	8.189687	8.206109
8 h after light	8.206109	8.206109	8.206109
12 h after light	8.062594	7.882375	8.242813
4 h after dark	8.019728	7.833347	8.206109
8 h after dark	9.2500895	8.807753	9.692426
12 h after dark	7.820455	7.820455	7.820455