condition	mean	min	max
4 h after light	11.32335	11.0062	11.6405
8 h after light	12.0273	11.3712	12.6834
12 h after light	11.6847	11.2545	12.1149
4 h after dark	18.30355	18.005	18.6021
8 h after dark	20.89245	20.856	20.9289
12 h after dark	18.9834	17.0013	20.9655