condition	mean	min	max
4 h after light	7.28258	7.09483	7.502160000000001
8 h after light	7.145466666666667	6.93993	7.39388
12 h after light	7.3523233333333335	7.21088	7.54598
4 h after dark	7.74632	7.542269999999999	8.01493
8 h after dark	7.689983333333333	7.4120800000000004	7.99643
12 h after dark	7.872943333333334	7.624960000000001	8.35965