condition	mean	min	max
4 h after light	5.9341	4.86288	7.00532
8 h after light	5.080555	5.06223	5.09888
12 h after light	6.467025	6.32329	6.61076
4 h after dark	9.96012	8.74811	11.3904
8 h after dark	9.15958	8.75287	9.57084
12 h after dark	6.941983333333333	5.83471	8.34667