Does anyone know what the graph accompanying the blood pressure measurements means or how it is to be interpreted? I've attached a screen shot of the graph I’m referring to. The readings in question are all in the normal range for systolic and diastolic levels. Therefore, why are yellows mixed in with the greens and why does the lowest reading of all (107/70) have four yellows and two greens? My question is specifically referencing the meaning of the graph with vertical lines and circles at each end. Does anyone know what those lines mean?