condition	mean	min	max
4 h after light	15.2744	12.4502	18.0986
8 h after light	11.4886	11.2476	11.7296
12 h after light	18.54055	17.8559	19.2252
4 h after dark	25.844533333333334	23.9175	28.6075
8 h after dark	27.572200000000002	26.2971	28.8332
12 h after dark	17.6676	16.1521	20.537