condition	mean	min	max
0 h after light	8.219425000000001	7.79956	8.63929
4 h after light	6.2023399999999995	5.81434	6.59034
8 h after light	4.44316	3.67927	5.20705
4 h after dark	6.42814	5.97866	6.87762
8 h after dark	6.45992	6.3701	6.54974
12 h after dark	6.2009799999999995	6.1327	6.26926