condition	mean	min	max
0 h after light	8.25751	7.71744	8.79758
4 h after light	9.896715	8.13373	11.6597
8 h after light	12.65815	10.8357	14.4806
4 h after dark	14.793299999999999	13.3821	16.2045
8 h after dark	8.693265	6.81443	10.5721
12 h after dark	8.001515	6.64403	9.359