condition	mean	min	max
4 h after light	4.780223333333333	4.69971	4.93995
8 h after light	4.68154	4.62456	4.77663
12 h after light	4.676856666666667	4.5149300000000006	4.94848
4 h after dark	4.67639	4.53742	4.89356
8 h after dark	4.6875	4.42523	4.90613
12 h after dark	4.6900200000000005	4.4813	4.92433