condition	mean	min	max
4 h after light	9.155513333333333	8.78467	9.35735
8 h after light	9.05663	8.49348	9.37026
12 h after light	9.123836666666667	8.634730000000001	9.41887
4 h after dark	9.105216666666667	8.4668	9.45988
8 h after dark	8.96597	8.537510000000001	9.22127
12 h after dark	8.88474	8.56276	9.05109