condition	mean	min	max
4 h after light	8.08205	7.985860000000001	8.18412
8 h after light	8.081913333333334	8.02223	8.14898
12 h after light	8.364256666666668	8.226360000000001	8.439860000000001
4 h after dark	7.9413599999999995	7.85383	8.040569999999999
8 h after dark	7.764836666666667	7.639819999999999	7.93266
12 h after dark	7.824956666666666	7.6418800000000005	8.07749