condition	mean	min	max
4 h after light	9.049965	8.244076	9.855854
8 h after light	8.3589005	8.330475	8.387326
12 h after light	8.2235835	7.567794	8.879373
4 h after dark	7.903264	7.419202	8.387326
8 h after dark	8.903488500000002	8.605562	9.201415
12 h after dark	8.690373	8.690373	8.690373