condition	mean	min	max
0 h after light	9.79392	9.69165	9.89619
4 h after light	6.533665	5.9912	7.07613
8 h after light	7.32718	6.61306	8.0413
4 h after dark	7.772724999999999	7.2755	8.26995
8 h after dark	7.436615	6.66564	8.20759
12 h after dark	7.176475	5.59705	8.7559