condition	mean	min	max
4 h after light	4.647995	4.49761	4.79838
8 h after light	5.74813	5.62296	5.8733
12 h after light	6.18408	5.8622	6.50596
4 h after dark	7.334985	6.64278	8.02719
8 h after dark	5.983125	5.77756	6.18869
12 h after dark	5.64997	5.52598	5.77396