condition	mean	min	max
4 h after light	7.607406666666667	7.517810000000001	7.68019
8 h after light	9.034813333333334	8.96852	9.10849
12 h after light	8.171990000000001	8.10105	8.24801
4 h after dark	8.471253333333333	8.414530000000001	8.57657
8 h after dark	8.25859	8.08296	8.4057
12 h after dark	7.189113333333333	7.03252	7.34058