So we can definitely rule out graph four. Now the other thing that they told us is that there are no outliers. Suggests a negative linear association with no outliers. If you were to try to fit a line to graph three, you could fit a line pretty reasonably that would go someplace like that. But it would have this outlier right over here. It looks like it's 12 or 13 years. It looks about 13 years after 1967.