condition	mean	min	max
4 h after light	8.75552	8.07618	9.43486
8 h after light	7.792425	7.40188	8.18297
12 h after light	7.25764	7.02028	7.495
4 h after dark	8.7089	8.48201	8.93579
8 h after dark	8.033785	7.81845	8.24912
12 h after dark	9.29148	9.14214	9.44082