condition	mean	min	max
4 h after light	8.78387	8.714189999999999	8.835460000000001
8 h after light	9.162296666666666	8.91475	9.37618
12 h after light	9.24712	9.1075	9.3295
4 h after dark	8.671596666666668	8.53312	8.76341
8 h after dark	8.184989999999999	7.873460000000001	8.42315
12 h after dark	8.042536666666667	7.62245	8.31608