condition	mean	min	max
4 h after light	9.33262	9.07705	9.58819
8 h after light	10.1588	10.0325	10.2851
12 h after light	11.12145	10.8191	11.4238
4 h after dark	16.75925	16.5218	16.9967
8 h after dark	17.8701	17.485	18.2552
12 h after dark	16.06785	15.7387	16.397