condition	mean	min	max
4 h after light	7.28434	6.9175699999999996	7.59795
8 h after light	6.517243333333333	6.2042	6.739319999999999
12 h after light	7.413856666666667	7.104010000000001	7.630389999999999
4 h after dark	6.375523333333334	5.9858	6.824610000000001
8 h after dark	6.781733333333333	6.6452100000000005	6.86482
12 h after dark	7.215226666666666	6.87569	7.447989999999999