condition	mean	min	max
4 h after light	8.96705	8.768139999999999	9.20845
8 h after light	9.208093333333334	9.04729	9.37379
12 h after light	9.23991	8.93404	9.4287
4 h after dark	9.344899999999999	9.11375	9.48221
8 h after dark	9.288926666666667	8.9625	9.5908
12 h after dark	9.262586666666667	9.150830000000001	9.38242