condition	mean	min	max
4 h after light	7.886324500000001	7.643942	8.128707
8 h after light	7.820455	7.820455	7.820455
12 h after light	7.584498	7.348541	7.820455
4 h after dark	7.6332185	7.510356	7.756081
8 h after dark	8.077271	7.847117	8.307425
12 h after dark	7.866383	7.866383	7.866383