condition	mean	min	max
4 h after light	9.94099	9.51508	10.3669
8 h after light	9.82417	8.39924	11.2491
12 h after light	8.441775	8.16415	8.7194
4 h after dark	14.990350000000001	11.8244	18.1563
8 h after dark	15.707049999999999	14.4904	16.9237
12 h after dark	15.16055	13.934	16.3871