condition	mean	min	max
4 h after light	16.585074	14.910416	18.259732
8 h after light	15.326496500000001	15.278402	15.374591
12 h after light	15.000855000000001	14.952071	15.049639
4 h after dark	15.374591	15.374591	15.374591
8 h after dark	15.814739	15.238949	16.390529
12 h after dark	16.844985	16.844985	16.844985