condition	mean	min	max
0 h after light	6.77544	6.42277	7.12811
4 h after light	5.676795	5.51776	5.83583
8 h after light	6.60641	6.35434	6.85848
4 h after dark	8.490805	7.66852	9.31309
8 h after dark	7.878465	7.75199	8.00494
12 h after dark	7.02436	6.72856	7.32016