condition	mean	min	max
4 h after light	7.224976666666667	6.904439999999999	7.38647
8 h after light	7.33594	7.09145	7.52687
12 h after light	7.227536666666667	6.82015	7.434260000000001
4 h after dark	7.5200700000000005	7.1401	7.72763
8 h after dark	7.661876666666666	7.45642	8.04234
12 h after dark	7.893660000000001	7.71163	8.03514