condition	mean	min	max
0 h after light	3.62883	2.83687	4.42079
4 h after light	12.88775	11.965	13.8105
8 h after light	8.911010000000001	8.50287	9.31915
4 h after dark	4.772165	3.32837	6.21596
8 h after dark	5.7374849999999995	3.41485	8.06012
12 h after dark	8.15511	6.61048	9.69974