condition	mean	min	max
4 h after light	8.9795965	8.616321	9.342872
8 h after light	8.466227	8.340586	8.591868
12 h after light	8.418594500000001	8.005851	8.831338
4 h after dark	8.2052645	7.64706	8.763469
8 h after dark	8.9872205	8.765425	9.209016
12 h after dark	12.50847	12.50847	12.50847