condition	mean	min	max
4 h after light	9.595556666666667	9.4609	9.71953
8 h after light	9.63316	9.555539999999999	9.67677
12 h after light	9.447093333333333	9.313089999999999	9.53646
4 h after dark	9.68767	9.49873	9.78377
8 h after dark	9.569389999999999	9.33345	9.754719999999999
12 h after dark	9.545633333333333	9.279919999999999	9.88746