condition	mean	min	max
4 h after light	8.666593333333333	8.38546	8.89964
8 h after light	8.55617	8.29877	8.7055
12 h after light	8.3078	8.00618	8.49232
4 h after dark	8.86923	8.73098	8.97585
8 h after dark	9.32023	9.0237	9.5088
12 h after dark	9.764893333333333	9.476280000000001	9.96497