condition	mean	min	max
4 h after light	7.5406745	6.573378	8.507971
8 h after light	6.966939	6.562512	7.371366
12 h after light	7.634437	7.448419	7.820455
4 h after dark	7.826900999999999	7.820455	7.833347
8 h after dark	8.5118075	7.251149	9.772466
12 h after dark	8.457457	8.457457	8.457457