condition	mean	min	max
4 h after light	8.7723625	8.767742	8.776983
8 h after light	7.7819635	6.557797	9.00613
12 h after light	8.1553445	7.848693	8.461996
4 h after dark	7.3700995	6.919744	7.820455
8 h after dark	7.4636455	7.106836	7.820455
12 h after dark	7.785907	7.785907	7.785907