condition	mean	min	max
4 h after light	7.10317	7.042339999999999	7.176360000000001
8 h after light	7.256	7.14237	7.35168
12 h after light	7.633423333333334	7.56606	7.71063
4 h after dark	6.783543333333333	6.60462	6.94423
8 h after dark	6.466093333333333	6.37643	6.568630000000001
12 h after dark	6.3439	6.18347	6.45783