condition	mean	min	max
0 h after light	5.75681	5.71592	5.7977
4 h after light	10.08248	8.73516	11.4298
8 h after light	2.79258	2.54558	3.03958
4 h after dark	4.537745	3.15774	5.91775
8 h after dark	5.33713	4.85542	5.81884
12 h after dark	6.76597	5.99366	7.53828