condition	mean	min	max
4 h after light	4.626860000000001	3.39832	5.8554
8 h after light	7.427365	7.36221	7.49252
12 h after light	12.3001	11.6731	12.9271
4 h after dark	14.4763	13.4494	15.5032
8 h after dark	9.94329	9.44498	10.4416
12 h after dark	7.59449	6.95329	8.23569