condition	mean	min	max
4 h after light	15.95925	15.019	16.8995
8 h after light	13.2841	12.1378	14.4304
12 h after light	7.784979999999999	7.47652	8.09344
4 h after dark	8.31003	7.60716	9.49822
8 h after dark	7.842303333333334	7.09897	8.64719
12 h after dark	8.742223333333333	7.7006	9.93922