condition	mean	min	max
4 h after light	9.45382	7.17414	11.7335
8 h after light	8.278155	7.91887	8.63744
12 h after light	10.86337	9.05084	12.6759
4 h after dark	15.165266666666668	13.97	16.4803
8 h after dark	14.3157	13.7104	14.8075
12 h after dark	14.1639	13.0139	14.7967