condition	mean	min	max
4 h after light	7.62997	7.42161	7.920260000000001
8 h after light	7.532976666666667	7.23592	7.94815
12 h after light	7.589243333333333	7.466410000000001	7.78227
4 h after dark	7.808566666666667	7.50215	8.208110000000001
8 h after dark	7.80967	7.66605	8.04571
12 h after dark	7.846513333333334	7.6321699999999995	8.226410000000001