condition	mean	min	max
4 h after light	8.835013333333334	8.78471	8.88513
8 h after light	8.400886666666667	8.28888	8.62355
12 h after light	8.66956	8.551630000000001	8.88335
4 h after dark	8.45581	8.25721	8.58525
8 h after dark	8.634326666666666	8.3379	8.827739999999999
12 h after dark	8.8387	8.68287	9.03318