condition	mean	min	max
4 h after light	9.470093333333333	9.45143	9.50569
8 h after light	9.514443333333332	9.38006	9.5946
12 h after light	9.637046666666667	9.59564	9.66623
4 h after dark	9.572790000000001	9.478710000000001	9.63061
8 h after dark	9.3433	9.120519999999999	9.47869
12 h after dark	9.43434	9.38303	9.46378