condition	mean	min	max
4 h after light	8.74	7.4	10.08
8 h after light	7.80572	7.45166	8.15978
12 h after light	7.017735	6.46277	7.5727
4 h after dark	8.911380000000001	8.36551	9.71094
8 h after dark	7.94101	7.23756	8.68598
12 h after dark	7.36623	6.08855	8.42213