condition	mean	min	max
4 h after light	15.229231	14.082116	16.376346
8 h after light	14.493248000000001	13.695076	15.29142
12 h after light	12.943579499999998	11.805043	14.082116
4 h after dark	14.390259	13.258652	15.521866
8 h after dark	14.258009	13.088159	15.427859
12 h after dark	16.859405	16.859405	16.859405