condition	mean	min	max
4 h after light	8.590143000000001	8.021825	9.158461
8 h after light	8.3484815	8.001169	8.695794
12 h after light	8.1313685	8.001169	8.261568
4 h after dark	7.453941500000001	6.832282	8.075601
8 h after dark	7.6013785	7.477104	7.725653
12 h after dark	8.605562	8.605562	8.605562