condition	mean	min	max
4 h after light	7.90238	7.81261	8.05382
8 h after light	7.947996666666667	7.77487	8.0553
12 h after light	7.8109399999999996	7.49367	7.9712
4 h after dark	8.00336	7.6593	8.29947
8 h after dark	7.975033333333334	7.76653	8.11105
12 h after dark	8.17386	8.05751	8.32179