condition	mean	min	max
4 h after light	9.225346666666667	9.15468	9.32923
8 h after light	8.594356666666666	8.39122	8.763639999999999
12 h after light	8.631583333333333	8.595989999999999	8.697410000000001
4 h after dark	8.87547	8.82639	8.91894
8 h after dark	9.47292	9.331380000000001	9.5663
12 h after dark	10.01408	9.94856	10.09211