condition	mean	min	max
4 h after light	6.960355	6.10682	7.81389
8 h after light	9.125685	8.64007	9.6113
12 h after light	8.889890000000001	8.82812	8.95166
4 h after dark	12.736733333333333	12.0771	13.4547
8 h after dark	8.201686666666667	6.60986	9.26797
12 h after dark	7.57233	7.43404	7.83887