condition	mean	min	max
4 h after light	9.129163333333333	9.01174	9.26635
8 h after light	9.280050000000001	9.24729	9.345360000000001
12 h after light	9.274270000000001	9.18518	9.344510000000001
4 h after dark	9.370436666666667	9.2969	9.50738
8 h after dark	9.410563333333334	9.31581	9.53527
12 h after dark	9.41387	9.32348	9.57199