condition	mean	min	max
4 h after light	5.68298	5.35488	6.01108
8 h after light	3.95656	3.51067	4.40245
12 h after light	4.878095	4.64306	5.11313
4 h after dark	5.18968	4.82963	5.54973
8 h after dark	6.49777	6.2739	6.72164
12 h after dark	6.02583	5.88558	6.16608