condition	mean	min	max
4 h after light	6.06363	5.99089	6.14674
8 h after light	6.34098	6.13941	6.464580000000001
12 h after light	6.091576666666667	6.01173	6.19489
4 h after dark	5.98823	5.86268	6.09242
8 h after dark	5.977296666666667	5.90981	6.02646
12 h after dark	5.947156666666666	5.79689	6.11486