condition	mean	min	max
4 h after light	11.39415	10.1256	12.6627
8 h after light	8.39687	8.28455	8.50919
12 h after light	5.54654	4.64389	6.44919
4 h after dark	6.902595	5.8491	7.95609
8 h after dark	4.81908	4.35828	5.27988
12 h after dark	6.916285	6.42017	7.4124